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Hacker Public Radio

Your ideas, projects, opinions - podcasted.

New episodes Monday through Friday.



Welcome to HPR the Community Podcast

We started producing shows as Today with a Techie on 2005-09-19, 17 years, 6 months, 6 days ago. Our shows are produced by listeners like you and can be on any topic that "are of interest to Hackers". If you listen to HPR then please consider contributing one show a year. If you record your show now it could be released in 15 days.


Latest Shows


hpr3816 :: Post Apocalyptic 4s5 Battery Pack

Tough Battery Design Worthy of the Post Apocalyptic Robotics Database

Hosted by Mechatroniac on 2023-03-20 is flagged as Explicit and released under a CC-BY-SA license.
Tags: battery,18650,cells,4s.
Listen in ogg, spx, or mp3 format. Series: Hobby Electronics | Comments (0)

HR000000000
H Hybrid: Denotes some prepurchased or hard to find components
R Robotics: suitable for robots

buy: 4s 40A BMS
https://www.aliexpress.com/item/4000025857655.html (can't specifically vouch for this vendor, just chose the first that came up)
make sure to choose 4s and balance

  1. find or buy materials: duct or gorilla tape, trashed computer dvd or cd drive, 20 18650 cells, molex connectors(you can also use barrel jacks or whatever you want to transfer power), wire and maybe 'tab wire' https://nl.aliexpress.com/item/32650006768.html

  2. solder everything together as per schematic and pictures (there is theoretically a danger in soldering cells, but I have never had a problem. Have a pair of pliers and a nearby window handy to throw them out of if anything goes wrong)

  3. wrap in cardboard and tape as per pictures

  4. add the cd/dvd drive lids(if you taped well you won't short anything and burn your house down

  5. tape dvd lids to battery

Getting into the battery for maintenance just requires a utility knife.

Watt Hour does a great job describing the 3s BMS, which is very similar to the 4s used in my case: https://yewtu.be/watch?v=QNENyu97w2A

Battery Schematic
Battery Schematic
Click the thumbnail to see the full-sized image

Cut through tape to reveal battery
Cut through tape to reveal battery
Click the thumbnail to see the full-sized image

Flat metal holds cells together
Flat metal holds cells together
Click the thumbnail to see the full-sized image

Detail of 4.2v
Detail of 4.2v
Click the thumbnail to see the full-sized image

Only have to desolder one side
Only have to desolder one side
Click the thumbnail to see the full-sized image

New cells in
New cells in
Click the thumbnail to see the full-sized image

Make sure there is thick tape covering battery
Make sure there is thick tape covering battery
Click the thumbnail to see the full-sized image

DVD drive case for stability
DVD drive case for stability
Click the thumbnail to see the full-sized image

Tape the DVE case to battery
Tape the DVE case to battery
Click the thumbnail to see the full-sized image

Charge board with Molex connector
Charge board with Molex connector
Click the thumbnail to see the full-sized image

Outdoors 1
Outdoors 1
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Outdoors 2
Outdoors 2
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Show Transcript

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hpr3815 :: The UNIVAC Uniscope - The first terminal with a video monitor

Hear about the Uniscope 300 mainframe terminal from 1964.

Hosted by Deltaray on 2023-03-17 is flagged as Clean and released under a CC-BY-SA license.
Tags: computer history,terminals.
Listen in ogg, spx, or mp3 format. Comments (0)

In the early days of computing, the computing power was kept in centralized large mainframes and users would connect to them via so called "dumb" terminals. These often provided their output through a printer and continuous feed of paper. However in 1964 UNIVAC introduced the Uniscope 300, which was one of the first terminals to provide a video monitor for display. With the introduction of this system came the introduction of several concepts that we take for granted today and they are described during the reading of this brochure.

The brochure was made available through the Computer History Museum at https://www.computerhistory.org/collections/catalog/102646317

As I mention in the episode, $15,000 USD in 1964 is worth considerably more today, according to an online inflation calculator it is now worth approximately $144,000 today. So even if that was for 48 terminals as it seems to mention in the hand written note, that might equate to about $3000 per terminal in 2023 dollars.

Here are some related links below:

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hpr3814 :: 2022-2023 New Years Show Episode 3

2022 - 2023 new years show where people come together and chat


Hosted by HPR Volunteers on 2023-03-16 is flagged as Explicit and released under a CC-BY-SA license.
Tags: hpr,new years,community.
Listen in ogg, spx, or mp3 format. Series: HPR New Year Show | Comments (2)

Episode #3

  • wikipedia: The Drunkard's Walk: How Randomness Rules Our Lives.
  • wikipedia: Lactose intolerance is a common condition caused by a decreased ability to digest lactose, a sugar found in dairy products.
  • uncyclopedia: A tree hugging hippy is a hippy who hugs trees often found in Bezerkley, California. Many people think that there is much more to say about tree hugging hippies than just the fact that they hug trees, but reality is, that there is not really very much more to say about tree hugging hippies than that they hug trees.
  • merriam-webster: A vegetarian is a person who does not eat meat : someone whose diet consists wholly of vegetables, fruits, grains, nuts, and sometimes eggs or dairy products.
  • merriam-webster: A vegan is a strict vegetarian who consumes no food (such as meat, eggs, or dairy products) that comes from animals.
  • wikipedia: Liberalism is a political and moral philosophy based on the rights of the individual, liberty, consent of the governed, political equality and equality before the law. Liberals espouse various views depending on their understanding of these principles.
  • wikipedia: Conservatism is a cultural, social, and political philosophy that seeks to promote and to preserve traditional institutions, practices, and values. The central tenets of conservatism may vary in relation to the culture and civilization in which it appears.
  • ssa: Social Security is committed to helping maintain the basic well-being and protection of the people we serve. We pay benefits to about 64 million people including retirees, children, widows, and widowers. From birth, to marriage, and into retirement, we are there to provide support throughout life's journey.
  • wikipedia: In physiology, dehydration is a lack of total body water, with an accompanying disruption of metabolic processes. It occurs when free water loss exceeds free water intake, usually due to exercise, disease, or high environmental temperature. Mild dehydration can also be caused by immersion diuresis, which may increase risk of decompression sickness in divers.
  • wikipedia: An emergency medical technician (EMT), also known as an ambulance technician, is a health professional that provides emergency medical services. EMTs are most commonly found working in ambulances. In English-speaking countries, paramedics are a separate profession that has additional educational requirements, qualifications, and scope of practice.
  • wikipedia: Post-traumatic stress disorder (PTSD) is a mental and behavioral disorder that can develop because of exposure to a traumatic event, such as sexual assault, warfare, traffic collisions, child abuse, domestic violence, or other threats on a person's life.
  • anxiety: Anxiety is the mind and body's reaction to stressful, dangerous, or unfamiliar situations. It's the sense of uneasiness, distress, or dread you feel before a significant event.
  • alcoholism: Alcoholism is a condition that develops over time as someone continues to abuse alcohol. The result of alcoholism is the inability to control the urge to drink alcohol.
  • neomutt: NeoMutt is a text-based application which interacts with users through different menus which are mostly line-/entry-based or page-based.
  • gnu: emacs is an extensible, customizable, free/libre text editor — and more.
  • wikipedia: Usenet is a worldwide distributed discussion system available on computers. It was developed from the general-purpose Unix-to-Unix Copy (UUCP) dial-up network architecture.
  • wikipedia: Google+ (pronounced and sometimes written as Google Plus; sometimes called G+) was a social network owned and operated by Google. The network was launched on June 28, 2011, in an attempt to challenge other social networks, linking other Google products like Google Drive, Blogger and YouTube.
  • techandcoffee: A virtual water cooler for the world of tech.
  • wikipedia: Yahoo! Messenger (sometimes abbreviated Y!M) was an advertisement-supported instant messaging client and associated protocol provided by Yahoo!. Yahoo! Messenger was provided free of charge and could be downloaded and used with a generic "Yahoo ID" which also allowed access to other Yahoo! services, such as Yahoo! Mail.
  • discord: A place that makes it easy to talk every day and hang out more often.
  • telegram: Telegram is a cloud-based mobile and desktop messaging app with a focus on security and speed.
  • IRC IRC is short for Internet Relay Chat. It is a popular chat service still in use today.
  • mintCast The podcast by the Linux Mint community for all users of Linux.
  • distrohoppersdigest: We are three Blokes who love Linux and trying out new stuff.
  • fullcirclemagazine:
  • linuxlads:
  • samsclub: Sam’s Club is a membership warehouse club, a limited-item business model that offers our members quality products.
  • walmart: Walmart Inc. is an American multinational retail corporation that operates a chain of hypermarkets, discount department stores, and grocery stores from the United States, headquartered in Bentonville, Arkansas.
  • target: Target Corporation is an American big box department store chain headquartered in Minneapolis, Minnesota.
  • mcdonalds: McMuffin is a family of breakfast sandwiches sold by the international fast food restaurant chain McDonald's.
  • joinmastodon: Social networking that's not for sale.
  • ciachef: You love food. And you’re pretty sure you want to make it your life. If this sounds like you, then The Culinary Institute of America is the only place you need to be.
  • fda: A food allergy is an abnormal immune response to food. The symptoms of the allergic reaction may range from mild to severe.
  • healthline: Spend less time in the kitchen: Choose which meals to cook first based on cook times.
  • wikipedia: Beekeeping is the maintenance of bee colonies, commonly in man-made beehives.
  • veganfriendly: The Ethics of Veganism: Ethical Reasons to Go Vegan.
  • worldwildlife: Beef production has several distinct and significant impacts on the environment.
  • xess: How to install, test, and use your new XS40 or XSP Board.
    • ebay: SBC ISA 386 SX40 single computer cpu card OMNI-300 4MB.
  • linuxmint: Linux Mint is a community-driven Linux distribution based on Ubuntu, bundled with a variety of free and open-source applications.
  • linuxliteos: Linux Lite is a Linux distribution based on Debian and Ubuntu created by a team of programmers led by Jerry Bezencon.
  • sparkylinux: SparkyLinux is a desktop-oriented operating system based on the Debian operating system.
  • ubuntu: Ubuntu is a Linux distribution based on Debian and composed mostly of free and open-source software.
  • snapcraft: Snaps are containerised software packages that are simple to create and install. They auto-update and are safe to run.
  • slackware: Slackware is a Linux distribution created by Patrick Volkerding in 1993.
  • archlinux: Arch Linux is an independently developed, x86-64 general-purpose Linux distribution that strives to provide the latest stable versions of most software by following a rolling-release model.
  • gnu: GNU GRUB is a Multiboot boot loader. It was derived from GRUB, the GRand Unified Bootloader, which was originally designed and implemented by Erich Stefan Boleyn.
  • wikipedia: Mavis Beacon Teaches Typing is an application software program designed to teach touch typing.
  • wikipedia: Microsoft Windows is a computer operating system developed by Microsoft.
  • wikipedia: List of Microsoft 365 applications and services.
  • freedos: FreeDOS is a complete, free, DOS-compatible operating system. While we provide some utilities, you should be able to run any program intended for MS-DOS.
  • blackberry: BlackBerry was a brand of smartphones and other related mobile services and devices.
  • wikipedia: OS/2 (Operating System/2) is a series of computer operating systems, initially created by Microsoft and IBM under the leadership of IBM software designer Ed Iacobucci.
  • pcom: The PCOM network account is used to logon to on-campus computers and to authenticate off-campus users.
  • wikipedia: The International Business Machines Corporation (IBM), nicknamed Big Blue, is an American multinational technology corporation headquartered in Armonk, New York, with operations in over 175 countries. It specializes in computer hardware, middleware and software and provides hosting and consulting services in areas ranging from mainframe computers to nanotechnology.
  • wikipedia: The IBM RT PC (RISC Technology Personal Computer) is a family of workstation computers from IBM introduced in 1986. These were the first commercial computers from IBM that were based on a reduced instruction set computer (RISC) architecture.
  • wikipedia: The Personal System/2 or PS/2 is IBM's second generation of personal computers. Released in 1987, it officially replaced the IBM PC, XT, AT, and PC Convertible in IBM's lineup.
  • wikipedia: Token Ring is a computer networking technology used to build local area networks. It was introduced by IBM in 1984, and standardized in 1989 as IEEE 802.5.
  • wikipedia: A Network Termination Device (NTD) is a customer-side network interface device used by the Australian National Broadband Network (NBN). Network termination devices provide multiple bridges for customers to access the NBN.
  • wikipedia: The Internet protocol suite, commonly known as TCP/IP, is a framework for organizing the set of communication protocols used in the Internet and similar computer networks according to functional criteria. The foundational protocols in the suite are the Transmission Control Protocol (TCP), the User Datagram Protocol (UDP), and the Internet Protocol (IP).
  • rtx: The Raytheon Company is a major U.S. defense contractor and industrial corporation with core manufacturing concentrations in weapons and military and commercial electronics.
  • wikipedia: In electronics, a wafer (also called a slice or substrate) is a thin slice of semiconductor, such as a crystalline silicon (c-Si), used for the fabrication of integrated circuits and, in photovoltaics, to manufacture solar cells.
  • wikipedia: A transistor is a semiconductor device used to amplify or switch electrical signals and power. The transistor is one of the basic building blocks of modern electronics.
  • wikipedia: A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element. In electronic circuits, resistors are used to reduce current flow, adjust signal levels, to divide voltages, bias active elements, and terminate transmission lines, among other uses.
  • mit: IBM's 360 and Early 370 Systems.
  • history: The Great San Francisco Earthquake.
  • wikipedia: A secretarial pool or typing pool is a group of secretaries working at a company available to assist any executive without a permanently assigned secretary. These groups have been reduced or eliminated where executives have been assigned responsibility for writing their own letters and other secretarial work.
  • debian: Debian, also known as Debian GNU/Linux, is a Linux distribution composed of free and open-source software, developed by the community-supported Debian Project, which was established by Ian Murdock on August 16, 1993.
  • nobaraproject: The Nobara Project, to put it simply, is a modified version of Fedora Linux with user-friendly fixes added to it.
  • getfedora: Fedora Linux is a Linux distribution developed by the Fedora Project. Fedora contains software distributed under various free and open-source licenses and aims to be on the leading edge of open-source technologies.
  • suckless: dwm is a dynamic window manager for Xorg.
  • wikipedia: The ThinkPad X series is a line of laptop computers and convertible tablets produced by Lenovo with less power than its other counterparts. It was initially produced by IBM until 2005.
  • newsgroups: Usenet is a very popular platform, and Newsgroups are a crucial part of It because Users to interact with each other, share and share stuff.
  • wikipedia: The Gopher protocol (/ˈɡoʊfər/) is a communication protocol designed for distributing, searching, and retrieving documents in Internet Protocol networks.
  • wikipedia: Gemini is an application-layer internet communication protocol for accessing remote documents, similar to the Hypertext Transfer Protocol (HTTP) and Gopher.
  • github: Amfora aims to be the best looking Gemini client with the most features... all in the terminal. It does not support Gopher or other non-Web protocols - check out Bombadillo for that.
  • circumlunar: You can use the following Gemini clients to connect to this server via the Gemini protocol and access the full range of content.
  • wikipedia: Dial-up Internet access is a form of Internet access that uses the facilities of the public switched telephone network (PSTN) to establish a connection to an Internet service provider (ISP) by dialing a telephone number on a conventional telephone line.
  • youtube: The FCC and Federal marshals raid a pirate radio station in Knoxville Tennessee.
  • fish: newsgroup for discussion by recovering sysadmins.
  • thunderbird: Thunderbird is an open source project, which means anyone can contribute ideas, designs, code, and time helping fellow users.
  • wikipedia: Eternal September or the September that never ended is Usenet slang for a period beginning around 1993 when Internet service providers began offering Usenet access to many new users.
  • wikipedia: BBM, also known by its full name BlackBerry Messenger, was a proprietary mobile instant messenger and videotelephony application included on BlackBerry devices that allows messaging and voice calls between BlackBerry OS, BlackBerry 10, iOS, Android, and Windows Mobile users.
  • opensuse: openSUSE, formerly SUSE Linux and SuSE Linux Professional, is a Linux distribution sponsored by SUSE Linux GmbH and other companies.
  • bbc: What hermits can teach us about isolation.
  • stwww: THE STAR TREK NEWSGROUPS.
  • ebay: 2,400+ results for hp elitedesk on ebay.
  • wikipedia: M.2, pronounced m dot two and formerly known as the Next Generation Form Factor (NGFF), is a specification for internally mounted computer expansion cards and associated connectors. M.2 replaces the mSATA standard, which uses the PCI Express Mini Card physical card layout and connectors.
  • oggcamp: OggCamp is an unconference celebrating Free Culture, Free and Open Source Software, hardware hacking, digital rights, and all manner of collaborative cultural activities and is committed to creating a conference that is as inclusive as possible.
  • mass: It is illegal for private citizens to use, possess, or sell fireworks in Massachusetts, or to purchase them legally elsewhere and then transport them into the state. The law prohibits any article designed to produce a visible or audible effect.
  • wikipedia: The COVID-19 pandemic, also known as the coronavirus pandemic, is an ongoing global pandemic of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The novel virus was first identified in an outbreak in the Chinese city of Wuhan in December 2019.
  • cdc: Vaccination often already covered under employee health plans Improves morale Benefits to Employees: Reduces absences due to sickness and doctor visits Improves health Convenience Improves morale Benefits will vary based on investment by employers in championing vaccination and number of employees vaccinated.
  • wikipedia: The McDonnell F-101 Voodoo is a supersonic jet fighter which served the United States Air Force (USAF) and the Royal Canadian Air Force (RCAF).
  • wikipedia: The Raytheon MIM-23 HAWK ("Homing all the way killer") is an American medium-range surface-to-air missile.
  • wikipedia: C-4 or Composition C-4 is a common variety of the plastic explosive family known as Composition C, which uses RDX as its explosive agent.
  • wikipedia: The Boeing C-97 Stratofreighter was a long-range heavy military cargo aircraft developed from the B-29 and B-50 bombers.
  • wikipedia: The Boeing B-29 Superfortress is an American four-engined propeller-driven heavy bomber, designed by Boeing and flown primarily by the United States during World War II and the Korean War.
  • nasa: What is a relay satellite?
  • truckstop: Long-Haul Trucking: Everything You Need to Know.
  • bodhilinux: Bodhi Linux, a lightweight distribution featuring the fast & fully customizable Moksha Desktop. The 64-bit is built on top of Ubuntu (20.04).
  • stormos: Storm OS is a Linux distribution based on Arch, and LFS (Linux from Scratch)!
  • stormdos: a multitasking 32-bit operating system written in Free Pascal (FPK, http://www.freepascal.org ) and distributed under GNU GPL v2 license and SDK files under GNU Lesser GPL v2.1.
  • wikipedia: List of Linux distributions.
  • sourceforge: Titan Linux is an all new distro built on the Debian Stable branch. It's a fully functional yet minimal KDE Plasma desktop experience focusing on usability and performance with a wide range of hardware support out of the box.
  • wikipedia: Dyslexia, also known until the 1960s as word blindness, is a disorder characterized by reading below the expected level for one's age. Different people are affected to different degrees. Problems may include difficulties in spelling words, reading quickly, writing words, "sounding out" words in the head, pronouncing words when reading aloud and understanding what one reads.
  • wikipedia: The Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5), is the 2013 update to the Diagnostic and Statistical Manual of Mental Disorders, the taxonomic and diagnostic tool published by the American Psychiatric Association (APA). In the United States, the DSM serves as the principal authority for psychiatric diagnoses.
  • wikipedia: In 1994, DSM-IV was published, listing 410 disorders in 886 pages. The task force was chaired by Allen Frances and was overseen by a steering committee of twenty-seven people, including four psychologists.
  • wikipedia: The thyroid, or thyroid gland, is an endocrine gland in vertebrates. In humans it is in the neck and consists of two connected lobes.
  • learning: Why use personality assessment tests?
  • wikipedia: Major depressive disorder (MDD), also known as clinical depression, is a mental disorder characterized by at least two weeks of pervasive low mood, low self-esteem, and loss of interest or pleasure in normally enjoyable activities.
  • drugs: Testosterone Injection.
  • healthline: Low testosterone in males is common as they get older. Symptoms can be subtle, but there is treatment available if the symptoms affect your lifestyle.
  • wikipedia: Endocrinology (from endocrine + -ology) is a branch of biology and medicine dealing with the endocrine system, its diseases, and its specific secretions known as hormones. It is also concerned with the integration of developmental events proliferation, growth, and differentiation, and the psychological or behavioral activities of metabolism, growth and development, tissue function, sleep, digestion, respiration, excretion, mood, stress, lactation, movement, reproduction, and sensory perception caused by hormones.
  • wikipedia: Nephrology (from Greek nephros "kidney", combined with the suffix -logy, "the study of") is a specialty of adult internal medicine and pediatric medicine that concerns the study of the kidneys, specifically normal kidney function (renal physiology) and kidney disease (renal pathophysiology), the preservation of kidney health, and the treatment of kidney disease, from diet and medication to renal replacement therapy (dialysis and kidney transplantation).
  • allrecipes: Salmon Tacos.

Thanks To:
Mumble Server: Delwin
HPR Site/VPS: Joshua Knapp - AnHonestHost.com
Streams: Honkeymagoo
EtherPad: HonkeyMagoo
Shownotes by: Sgoti and hplovecraft

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hpr3813 :: The postmarketOS Podcast

Ken welcomes a new podcast to the Free Culture Podcast family


Hosted by Ken Fallon on 2023-03-15 is flagged as Explicit and released under a CC-BY-SA license.
Tags: postmarketOS,Free Culture Podcast,FOSDEM.
Listen in ogg, spx, or mp3 format. Series: Podcast recommendations | Comments (0)

postmarketOS Podcast


#28 FOSDEM 2023 Special

Between the Saturday closing of FOSDEM 2023 and going to a restaurant, we managed to squeeze around a table outside the cafeteria to record the very first ever in-person postmarketOS podcast episode! Fresh in the moment we share our experiences from the FOSS on mobile devroom, meeting great people at the Linux on Mobile stand (and everywhere else at FOSDEM/in Brussels) and random other cool things that were going down.

Featuring @spaetz (sampled in the intro), @ollieparanoid, @linmob, @craftyguy, @MartijnBraam, @calebccff, @PureTryOut, @z3ntu (in order of appearance).

Photos:

Video recordings of the talks:

PinePhone and Lima / Mesa:

We're aware that mesa#8198 is still causing problems for people on the PinePhone. Big thanks to @enues from mesa who was talking to us at the stand and is now looking into it! We also have issue pmaports#805 about screen freezes. If you are affected by this and would like to help out, firing up a profiler and making/contributing to detailed, useful bugreports upstream at mesa is appreciated.

@spaetz from Mobian did a great job at moderating the devroom! (Correction: Ollie said from Maemo instead of Mobian in the recording.)

Editing by: @ollieparanoid, Music by: The Passion HiFi


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hpr3812 :: PeePaw's computer does nothing

a z80 nop test

Hosted by Brian in Ohio on 2023-03-14 is flagged as Clean and released under a CC-BY-SA license.
Tags: z80, forth, retrocomputer.
Listen in ogg, spx, or mp3 format. Comments (0)

peepaws computer does nothing

  1. who's peepaw, whats the goal
    • to build and understand the inner workings of an 8 bit computer and maybe one day pass it on to a grand kid
  2. this episode -nop test
    • do a nop test, that is get the z80 up and running executing the nop instruction
    • using the facilities of an arduino mega board running flash forth to do that, talk about pictures
    • why? flash forth is interactive, without being such a big application itself. Happily runs on an atmega328
    • why the mega, oodles and oodles of io, so emulating hardware should be a snap
    • use the microcontroller board to provide 5 volts, clock signal and data to get the z80 up and running
    • use the logic probe to see if there is activity on the address bus
  3. wiring up
    • hot glued solderless breadboard on to an arduino mega protoshield, white wire is the logicprobe input
    • power and ground first
    • clock, blue
    • control lines int, nmi, wait busrq and reset
    • orange wires data bus
    • address lines go around the chip clockwise from the clock signal (blue wire) we'll be probing A0, next to the ground line

1.logicprobe.jpg
1.logicprobe.jpg

2.power.jpg
2.power.jpg

3.clock.jpg
3.clock.jpg

4.control.signals.jpg
4.control.signals.jpg

5.data.jpg
5.data.jpg

6.ready.to.probe.jpg
6.ready.to.probe.jpg

z80-pinout.jpg
z80-pinout.jpg

2560-pinout.jpg
2560-pinout.jpg
Click the thumbnail to see the full-sized image

  1. fixing some words, refactoring some words, defining new words
    • fixed the data processing word to us the input on pin e4 (digital 2) not the output on pin h6 (digital 9)
    • changed freq= some value to simply pulse, not interested in the specific frequency
    • split clock and logic probe init words
    • added some words to control the reset line reset and run
    • added a word step that allows for single clock pulses
  2. the test, mega board plugged into laptop, seral terminal running
    • spool up the logic probe
    • spool up the microcontroller board setting up a port to provide data on the z80 data bus (rudimentary rom)
    • add 5 volts
    • initialize and start the clock
    • probe the clock line
    • probe a0 line
  3. a little more to see what else we can discern
    • single step to reset
    • probe m1
    • single step to reset
    • add halt instruction
    • probe halt line
  4. this is output captured from the tests run on the show. lines that begin with a back slash are comments used as narration ok<#,ram> is the forth interpreter reporting it has successfully processed the proceeding word(s), including comments pulse, high and low are output from the logicprobe, all other words are defined in the source text and the end of the notes
E FlashForth 5 ATmega2560 13.06.2022

\ initialize the logic probe  ok<#,ram>
logicprobe.init  ok<#,ram>
\ initialize the clock  ok<#,ram>
clock.init  ok<#,ram>
\ initialize arduinomega ports that interact with z80  ok<#,ram>
z80.ports.init  ok<#,ram>
\ add power on the board  ok<#,ram>
\ probe the clock pin to see if there is activity  ok<#,ram>
sample
pulse ok<#,ram>
\ success!  ok<#,ram>
\ probe adrress line A0, pin 30 on the z80  ok<#,ram>
sample
pulse ok<#,ram>
\ pulse means there is activity on the bus  ok<#,ram>
\ stop the clock and probe A0 again, should see either a static high or low
signal ok<#,ram>
stop.clock sample
low ok<#,ram>
\ now move logic probe to pin 27, the M1 signal  ok<#,ram>
\ put the z80 in reset and give three clock steps  ok<#,ram>
reset  ok<#,ram>
step  ok<#,ram>
step  ok<#,ram>
step  ok<#,ram>
\ the z80 should be reset, now put in run  ok<#,ram>
run  ok<#,ram>
\ now single step the clock to see the M1  ok<#,ram>
\ signal go from high to low as the z80 begins   ok<#,ram>
\ fetching data fro the data bus at address 0  ok<#,ram>
step sample
high ok<#,ram>
step sample
high ok<#,ram>
step sample
low ok<#,ram>
step sample
low ok<#,ram>
step sample
high ok<#,ram>
\ success! the M1 signal is working as expected  ok<#,ram>
\ now reset the z80 and see what happens when  ok<#,ram>
\ we give a different instruction this time hex 76  ok<#,ram>
\ the halt instruction. We should see the halt signal go from   ok<#,ram>
\ high to low  ok<#,ram>
reset step step step  ok<#,ram>
\ put hat instruction on data lines  ok<#,ram>
$76 DATA c!  ok<#,ram>
\ now run mode  ok<#,ram>
run  ok<#,ram>
\ step clock and sample pin 18 the halt line  ok<#,ram>
step sample
high ok<#,ram>
step sample
high ok<#,ram>
step sample
high ok<#,ram>
step sample
high ok<#,ram>
step sample
high ok<#,ram>
step sample
low ok<#,ram>
step sample
low ok<#,ram>
\ 4 clock cycles and halt line goes low and stays low, success!  ok<#,ram>
\ thanks for listening  ok<#,ram>
  1. Forth source code
-logicprobe
marker -logicprobe

variable Compare
variable Count

$100 constant PINH
$101 constant DDRH
$102 constant PORTH

$a0 constant TCCR4A
$a1 constant TCCR4B
$a8 constant OCR4A

$2c constant PINE
$2d constant DDRE
$2e constant PORTE

$6a constant EICRB
$3d constant EIMSK

: ext4.irq ( -- ) Count @ 1+ Count ! ;i

: logicprobe.init ( -- )
  %0 DDRE c! \ e input
  %0000.0010 EICRB mset \ falling edge
  ['] ext4.irq #6 int! \ attach interrupt
;

: clock.init ( -- )
  1249 Compare ! \ 100 hz
  %0000.1000 DDRH mset \ h3 output
  %0100.0000 TCCR4A c!  \ toggle d6, ph3 on compare match
  %0000.1011 TCCR4B c!  \ set ctc mode, clk/64
  Compare @ OCR4A !    \ set compare value
;

\ helper words
: start.clock ( -- )  %0100.0000 TCCR4A c! %0000.1011 TCCR4B c! ;
: stop.clock ( -- )   %0000.0000 TCCR4A c!  %0000.0000 TCCR4B c! ;
: set.frequency ( n -- )  OCR4A ! ;    \ set compare value
: pin.high ( -- )  %0000.1000 PORTH mset ;
: pin.low ( -- )    %0000.1000 PORTH mclr ;
: open.gate ( -- )   0 Count ! %0001.0000 EIMSK mset ;
: close.gate ( -- )   %0001.0000 EIMSK mclr ;

: process.data ( -- )
  Count @ 1-
  Count !
  Count @ 0 > if
    \ cr ." freq=" 10 * .
    cr ." pulse"
  else
    %0001.0000 PINE mtst if
      cr ." high"
    else
      cr ." low"
    then then
;

: wait 100 ms ;

: sample ( -- ) open.gate wait close.gate process.data ;

\ nop tester
-nop
marker -nop

$20 constant PINA
$21 constant DDR.DATA
$22 constant DATA

$23 constant PINB
$24 constant DDRB
$25 constant PORTB

$2f constant PINF
$30 constant DDRF
$31 constant PORTF

%0000.0001 constant WAIT
%0000.0010 constant BUSRQ
%0000.0100 constant RESET
%0001.0000 constant INT
%0010.0000 constant NMI

: z80.ports.init ( -- )
  \ data port output
  $ff DDR.DATA c!
  \ control signals, output
  NMI INT or DDRB mset
  WAIT BUSRQ RESET or or DDRF mset
  \ nop instruction on data port
  $ff DATA mclr
  \ control lines high
  NMI INT or PORTB mset
  WAIT BUSRQ RESET or or PORTF mset
;

: reset ( -- ) RESET PORTF mclr ;
: run ( -- ) RESET PORTF mset ;
: step ( -- ) pin.high 1 ms pin.low ;

\ logicprobe.init
\ clock.init
\ z80.ports.init
\ sample

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hpr3811 :: mkfifo and named pipes

Have you ever named a pipe? If not, this is the episode you've been waiting for.

Hosted by Klaatu on 2023-03-13 is flagged as Clean and released under a CC-BY-SA license.
Tags: pipe, fifo, mkfifo, Linux, shell.
Listen in ogg, spx, or mp3 format. Series: Bash Scripting | Comments (0)

A named pipe is like a UNIX pipe, except it takes the form of a file.


$ mkfifo mypipe
$ echo "Hacker Public Radio" > mypipe &
$ cat mypipe
Hacker Public Radio

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hpr3810 :: Clifton, Arizona

We move to another Arizona town, Clifton.


Hosted by Ahuka on 2023-03-10 is flagged as Clean and released under a CC-BY-SA license.
Tags: Travel, RV life, Arizona, Clifton.
Listen in ogg, spx, or mp3 format. Series: Travel | Comments (1)

We have left the Tucson area and moved up into the mountains to Clifton, Arizona, a mining town. Arizona is a major source of Copper for the U.S., and Clifton has one of the larger open pit mines in the world, and the largest in the U.S.

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hpr3809 :: The Abominable Post Apocalyptic Podcast Player

Build a Three Dollar MP3 player in One Hour

Hosted by Mechatroniac on 2023-03-09 is flagged as Explicit and released under a CC-BY-SA license.
Tags: robotics, mp3, GPD2846A, GPD2846, DIY, arduino .
Listen in ogg, spx, or mp3 format. Series: Arduino and related devices | Comments (4)

Notes: Forgot to mention that I hot glued the top lid (original lid for the 'speaker box'), on top of the boards. I had used the device with the top uncovered for a month because I hoped I would find a better choice but after getting tired of the wires detaching and worrying about the sdcard slot getting wrecked I decided to commit to glueing the lid on.

The boards are very robust, I dropped them in the snow a few times. They would stop working but after drying off would function.

I didn't find the datasheet with the resistance values for other values until after I glued the lid so will have to open it up again or get into one of the switch lines and do resistor combinations... now that I know more I think I should be able to control the mp3 player with one analog output pin from the arduino for all the functions, since it seems the pin 8 that all the switch resistors lead to detects voltage levels from the voltage divider created when one of the switches goes to ground.

The robot is using 4 lines right now for mp3 control. Would be cool if I could free up 3 more but I don't remember if any of them are occupying an analogue slot.

No power button! None needed. Pause and unpause via momentary switch. The charger board can charge from micro usb or usb-c and will protect your 18650 cell from running flat and damaging itself.

Check out my robots: https://bitchute.com/channel/mechatroniac

Post Apocalyptic Robotics Database Entry:
HH000000000
H Hybrid: Denotes some prepurchased or hard to find components
H Human use: For use by biological humans

Tools and supplies

  • multimeter - not strictly required but highly recommended
  • Soldering iron
  • solder(thinner solder wire works better for electronics)
  • wire stripper
  • hot glue gun
  • electric or duct tape
  • side cutters/cutting pliers/aircraft snips

Buy:

Find or Buy:

  • short lengths of wire

  • 4 ohm speaker (can be found in old tvs)

  • momentary switches(3) - can be found in vcrs, tvs, dvd players...

  • 18650 cell

  • 3.5g weed jar or similar + lid

  • larger lid

(optional)
You should consider getting an arduino or a kit

Picture 1
Picture 1
Click the thumbnail to see the full-sized image

Picture 2
Picture 2
Click the thumbnail to see the full-sized image

Picture 3
Picture 3
Click the thumbnail to see the full-sized image

Picture 4
Picture 4
Click the thumbnail to see the full-sized image

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hpr3808 :: Funkwhale A social platform to enjoy and share music

Ken interviews Ciarán Ainsworth about Funkwhale that lets you listen and share music and audio


Hosted by Ken Fallon on 2023-03-08 is flagged as Clean and released under a CC-BY-SA license.
Tags: funkwhale,Grooveshark,iTunes,vue,musicbrainz,picard,subsonic,castopod.
Listen in ogg, spx, or mp3 format. Comments (1)

Funkwhale is a community-driven project that lets you listen and share music and audio within a decentralized, open network

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hpr3807 :: PeePaw builds a computer

Brian starts the process of building an 8 bit retro computer

Hosted by Brian in Ohio on 2023-03-07 is flagged as Clean and released under a CC-BY-SA license.
Tags: retro computing, forth, arduino.
Listen in ogg, spx, or mp3 format. Comments (3)

  1. intro
    • who is peepaw?
      Me!
    • why a retro computer?
      help a kid understand computers
    • why z80?
      cheap, available, cheap
  2. the plan
  3. getting started, the nop test
  4. the nop tester, in software
  5. the code walk through, start from the bottom up note: ( -- ) are stack effect comments, back slashes are plain comments
    • constants
    • variable
    • @ ! mset mclr mtst
    • set up external interrupt, int4, arduino board pin4
\ the source code
\ declare some constants and variable as labels
variable Compare
variable Count

$100 constant PINH      \ these labels come from the atmega2560 datasheet
$101 constant DDRH
$102 constant PORTH
$a0 constant TCCR4A
$a1 constant TCCR4B
$a8 constant OCR4A
$2c constant PINE
$2d constant DDRE
$2e constant PORTE
$6a constant EICRB
$3d constant EIMSK

: ext4.irq ( -- ) Count @ 1+ Count ! ;i  \ the frequency counter

: logicprobe-init ( -- )
    1249 Compare ! \ 100 hz
    %0000.1000 DDRH mset \ h3 output
    %0100.0000 TCCR4A c!  \ toggle d6, ph3 on compare match
    0000.1011 %TCCR4B c!  \ set ctc mode, clk/64
    Compare @ OCR4A !  \ set compare value
    %0 DDRE c! \ e input
    0001.0000 PORTE mset \ pullup on e4
    %0000.0010 %EICRB mset \ falling edge
    ['] ext4.irq #6 int!
;

\ helper words

: start-clock ( -- )  %0100.0000 TCCR4A c! %0000.1011 TCCR4B c! ;    \ the bit manipulation does what the word says
: stop-clock ( -- )   %0000.0000 TCCR4A c!  %0000.0000 TCCR4B c! ;
: set-frequency ( n -- )  OCR4A ! ;    \ set compare value
: pin-high ( -- )  %0000.1000 PORTH mset ;
: pin-low ( -- )    %0000.1000 PORTH mclr ;
: open-gate ( -- )   0 Count ! %0001.0000 EIMSK mset ;
: close-gate ( -- )   %0001.0000 EIMSK mclr ;

: process-data ( -- )
  Count @ 1- Count !       \ clean up value in Count
  Count @ dup 0 > if       \ is Count greater than 0, if so its pulsing
     cr ." freq=" 10 * .
  else                     \ otherwise its not so is it high or low?
      drop
      %0000.1000 PINH mtst
      if
         ." high"
       else
          ." low"
      then then
 ;

 : wait ( -- ) 100 ms ;

 : sample-pin ( -- ) open-gate wait close-gate process-data ;  \ the 'logic probe'
  1. test
    Arduino
    Arduino

    • clock, using 16 bit timer4, its output is on pin6, running at 100hz
    • need to be able to start and stop the clock, and set the output pin high or low
    • sample-pin is the word that does the work
    • ouput from the serial terminal exercising the logic probe ( comments add after the fact):
    E FlashForth 5 ATmega2560 13.06.2022
    
    ok<#,ram>
    logicprobe-init ok<#,ram>    (start up the logic probe)
    sample-pin                   (sample the pin)
    freq=100 ok<#,ram>           ( its oscilating at 100hz)
    stop-clock ok<#,ram>
    sample-pin low ok<#,ram>     ( after stopping the clock the pin is low)
    pin-high ok<#,ram>
    sample-pin
    high ok<#,ram>               ( now its high)
    125 set-frequency ok<#,ram>
    start-clock ok<#,ram>
    sample-pin
    freq=1000 ok<#,ram>          ( after changing the frequency its 1000hz)
  2. next time

    • repurpose the 16bit clock and use it to drive the z80, we'll hook up the data port of the z80 to the arduino mega and use the logic probe to see if the z80 is working

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Previous five weeks

hpr3806 :: HPR Community News for February 2023 hosted by HPR Volunteers

Released: 2023-03-06. Duration: 01:16:32. Flag: Explicit. Series: HPR Community News.
Tags: Community News.
HPR Volunteers talk about shows released and comments posted in February 2023
Listen in ogg, spx, or mp3 format.

hpr3805 :: Document File Formats on Wikipedia hosted by Archer72

Released: 2023-03-03. Duration: 00:12:16. Flag: Clean.
Tags: Documents, Formats.
Document File Format - a continuation of Content Format
Listen in ogg, spx, or mp3 format.

hpr3804 :: 2022-2023 New Years Show Episode 2 hosted by HPR Volunteers

Released: 2023-03-02. Duration: 01:27:04. Flag: Explicit. Series: HPR New Year Show.
Tags: hpr,new years,community.
2022 - 2023 new years show where people come together and chat
Listen in ogg, spx, or mp3 format.

hpr3803 :: Chatbot hallucination hosted by dnt

Released: 2023-03-01. Duration: 00:06:47. Flag: Explicit.
Tags: chatgpt,"artificial intelligence".
The inevitable show featuring a segment written by the chatbot ChatGPT.
Listen in ogg, spx, or mp3 format.

hpr3802 :: Attack of the Squishmallow hosted by Rho`n

Released: 2023-02-28. Duration: 01:36:49. Flag: Clean.
Tags: DIY, Macbook, Macbook Pro, pc repair, repair.
Rho`n records replacing the screen to a MacBook Pro
Listen in ogg, spx, or mp3 format.

hpr3801 :: Enter the gopher hosted by screwtape

Released: 2023-02-27. Duration: 00:13:42. Flag: Clean.
Tags: gopher,protocol,smolnet,tutorial,introduction,internet,retro.
Participating in the gopher internet protocol
Listen in ogg, spx, or mp3 format.

hpr3800 :: NIST Quantum Cryptography Update 20221008 hosted by Ahuka

Released: 2023-02-24. Duration: 00:15:28. Flag: Clean. Series: Privacy and Security.
Tags: NIST, Encryption, quantum computing.
An update on the preparations for quantum computing
Listen in ogg, spx, or mp3 format.

hpr3799 :: My home router history hosted by norrist

Released: 2023-02-23. Duration: 00:32:01. Flag: Clean.
Tags: openbsd, ansible, router.
Recent router maintenance makes me remember all the fun I've had with my home network router
Listen in ogg, spx, or mp3 format.

hpr3798 :: Laptop Second SSD MXLinux Install hosted by Mechatroniac

Released: 2023-02-22. Duration: 00:12:29. Flag: Explicit. Series: Hardware upgrades.
Tags: distrohopping,distros,linux,GNU,MXLinux.
Overcoming UEFI and Windows 10 to Install MXLinux 21.3 on a 2021 Asus Laptop 2nd SSD drive
Listen in ogg, spx, or mp3 format.

hpr3797 :: How to submit changes to HPR hosted by Ken Fallon

Released: 2023-02-21. Duration: 00:31:35. Flag: Clean.
Tags: git,hpr,code,pull request.
rho_n shows Ken how to submit changes to the new HPR static site.
Listen in ogg, spx, or mp3 format.

hpr3796 :: Dependent Types hosted by David Thrane Christiansen

Released: 2023-02-20. Duration: 00:08:28. Flag: Clean.
Tags: types, math, programming languages, functional programming.
A quick taste of programming with dependent types
Listen in ogg, spx, or mp3 format.

hpr3795 :: 2022-2023 New Years Show Episode 1 hosted by HPR Volunteers

Released: 2023-02-17. Duration: 01:23:42. Flag: Explicit. Series: HPR New Year Show.
Tags: hpr,new years,community.
2022 - 2023 new years show where people come together and chat the year away
Listen in ogg, spx, or mp3 format.

hpr3794 :: Retro Karaoke machine restored hosted by Archer72

Released: 2023-02-16. Duration: 00:08:11. Flag: Clean.
Tags: retro, karaoke, 8-track, cassette tape, Free Music Archive.
I fix the cassette tape mechanism to a resale shop karaoke machine
Listen in ogg, spx, or mp3 format.

hpr3793 :: RE: Zen_Floater2 hosted by Some Guy On The Internet

Released: 2023-02-15. Duration: 00:18:47. Flag: Explicit.
Tags: Tin hat, chrome book, Artificial intelligence.
GOD probably will use a Chromebook.
Listen in ogg, spx, or mp3 format.

hpr3792 :: Learning to read music, part one hosted by enistello

Released: 2023-02-14. Duration: 00:23:24. Flag: Clean.
Tags: music,self-learning,auto-didactic.
In which we learn to read music by going for a walk
Listen in ogg, spx, or mp3 format.

hpr3791 :: My Hardware Problem - Keyboards hosted by StarshipTux

Released: 2023-02-13. Duration: 00:23:38. Flag: Clean. Series: Hardware upgrades.
Tags: Keyboards, Ducky, Razer, Red Dragon, Cherry, Kailh, MX, Keycaps, HyperX, Pudding.
I'm always looking for new computer hardware. This is about my keyboards
Listen in ogg, spx, or mp3 format.

hpr3790 :: Tucson, Part 2 hosted by Ahuka

Released: 2023-02-10. Duration: 00:12:58. Flag: Clean. Series: Travel.
Tags: Travel, RV life, Arizona, Tucson.
We continue our month-long stay in Benson, a town just southeast of Tucson.
Listen in ogg, spx, or mp3 format.

hpr3789 :: Common lisp portable games including acl2 formal logic hosted by screwtape

Released: 2023-02-09. Duration: 00:53:40. Flag: Clean.
Tags: common-lisp,acl2,asdf3,formal-methods,game,programming.
Describing exploratory libre common lisp portable games I am using acl2 formal methods in modules of
Listen in ogg, spx, or mp3 format.

hpr3788 :: Nitecore Tube torch hosted by Dave Morriss

Released: 2023-02-08. Duration: 00:06:37. Flag: Explicit.
Tags: torch,flashlight,rechargeable,Lithium Ion.
I have owned one of these for many years and find it very useful
Listen in ogg, spx, or mp3 format.

hpr3787 :: It shouldn't crackle like that hosted by Rho`n

Released: 2023-02-07. Duration: 00:09:44. Flag: Clean.
Tags: Christmas, electrical, safety.
Rho`n describes fixing the wiring to a ceramic Christmas tree
Listen in ogg, spx, or mp3 format.

hpr3786 :: HPR Community News for January 2023 hosted by HPR Volunteers

Released: 2023-02-06. Duration: 00:48:01. Flag: Explicit. Series: HPR Community News.
Tags: Community News.
HPR Volunteers talk about shows released and comments posted in January 2023
Listen in ogg, spx, or mp3 format.

hpr3785 :: Hacking Boba Bubble Tapioca Pearls Fail hosted by operat0r

Released: 2023-02-03. Duration: 00:55:21. Flag: Explicit. Series: Cooking.
Tags: cooking,hacking,fail.
Hacking Boba Bubble Tapioca Pearls Fail
Listen in ogg, spx, or mp3 format.

hpr3784 :: Two factor authentication without a phone number hosted by Celeste

Released: 2023-02-02. Duration: 00:18:27. Flag: Clean. Series: Privacy and Security.
Tags: 2FA, OTP, TOTP, HOTP, security.
Diving into privacy-aware and offline methods to generate one time passwords
Listen in ogg, spx, or mp3 format.

hpr3783 :: Accessibility, and Navigating the HPR Web Pages with a Screen Reader hosted by Mike Ray

Released: 2023-02-01. Duration: 00:21:44. Flag: Explicit.
Tags: Accessibility, HPR, Screen Reader.
Mike puts the HPR Web Site to the test.
Listen in ogg, spx, or mp3 format.

hpr3782 :: Content Format article from Wikipedia hosted by Archer72

Released: 2023-01-31. Duration: 00:05:00. Flag: Clean.
Tags: media, formats, encoding.
Wikipedia article on the various types of content formats
Listen in ogg, spx, or mp3 format.

hpr3781 :: The Joule Thief hosted by Andrew Conway

Released: 2023-01-30. Duration: 00:13:11. Flag: Clean.
Tags: electronics.
Using the Joule Thief to suck energy out of flat batteries
Listen in ogg, spx, or mp3 format.

hpr3780 :: Fediverse Update May 2022 hosted by Ahuka

Released: 2023-01-27. Duration: 00:13:44. Flag: Clean. Series: Social Media.
Tags: social media, alternative, Fediverse, ActivityPub, Mastodon, Screen readers, WordPress.
This episode reports on some updates to the Fediverse that I ran across in May 2022
Listen in ogg, spx, or mp3 format.

hpr3779 :: Just Because You Can Do a Thing... hosted by Trey

Released: 2023-01-26. Duration: 00:03:18. Flag: Clean.
Tags: aging, diy, health.
Just because you can do a thing, does that mean you should?
Listen in ogg, spx, or mp3 format.

hpr3778 :: A Squirrel Beeing on Google Products and Google Security hosted by Zen_Floater2

Released: 2023-01-25. Duration: 00:20:23. Flag: Explicit.
Tags: Android, chromebooks, easytether, cellphones, bandwidth,beeing,sucks, QRcodes, healio.
I made a 'beeing" podcast about Google products, interoperability and their lousy security
Listen in ogg, spx, or mp3 format.

hpr3777 :: Running Haiku on Bhyve, the BSD Hypervisor hosted by Claudio Miranda

Released: 2023-01-24. Duration: 00:08:51. Flag: Clean.
Tags: freebsd,haiku,beos,bhyve,vmbhyve,bsd,virtualization,hypervisor.
Claudio talks about installing and running Haiku R1/beta4 on Bhyve
Listen in ogg, spx, or mp3 format.

hpr3776 :: A linux distro review hosted by Bookewyrmm

Released: 2023-01-23. Duration: 00:09:32. Flag: Clean.
Tags: xero linux, distro review, linux distro, .
A linux distro review
Listen in ogg, spx, or mp3 format.

hpr3775 :: Emergency Show posted in 2014. How to make a punch-card computer hosted by Mike Ray

Released: 2023-01-20. Duration: 00:14:10. Flag: Clean.
Tags: home-made computer, glue, fun, kids.
How to make a punch-card computer from stuff from the kitchen
Listen in ogg, spx, or mp3 format.

hpr3774 :: Emergency Show posted in 2014. Chump Car Report hosted by David Whitman

Released: 2023-01-19. Duration: 00:25:00. Flag: Explicit.
Tags: Racing, Chump Car World Series, MonsterB, Portland Oregon, sounds, boring.
The racing series for $500 cars.
Listen in ogg, spx, or mp3 format.

hpr3773 :: My Public Speaking Rules hosted by Mike Ray

Released: 2023-01-18. Duration: 00:17:35. Flag: Explicit.
Tags: public speaking,.
Some tips on public speaking for technical talks or lectures.
Listen in ogg, spx, or mp3 format.

hpr3772 :: Adventures with a small solar panel hosted by Andrew Conway

Released: 2023-01-17. Duration: 00:27:43. Flag: Clean.
Tags: solar,electricity,power,electronics.
I have a look at a cheap solar panel and learn a bit about how it works, and doesn't work.
Listen in ogg, spx, or mp3 format.

hpr3771 :: How I eliminated pain naturally hosted by Paul Quirk

Released: 2023-01-16. Duration: 00:19:46. Flag: Clean.
Tags: elliptical,ergonomics,pain,natural,Microsoft,Logitech,Elecom.
I describe how I managed to eliminate pain from carpal tunnel syndrome and osteoarthritis.
Listen in ogg, spx, or mp3 format.

hpr3770 :: Tucson hosted by Ahuka

Released: 2023-01-13. Duration: 00:15:08. Flag: Clean. Series: Travel.
Tags: Travel, RV life, Arizona.
We move to Benson, a town just southeast of Tucson, where we will stay for a month.
Listen in ogg, spx, or mp3 format.

hpr3769 :: Crouching laptop, hidden server (part 0). hosted by Some Guy On The Internet

Released: 2023-01-12. Duration: 00:13:55. Flag: Clean. Series: Virtualization.
Tags: proxmox, virt-install, virtual machine, DDNS, laptop.
Virtualized battlegrounds.
Listen in ogg, spx, or mp3 format.

hpr3768 :: Jeep Ignition Repair hosted by Stache_AF

Released: 2023-01-11. Duration: 00:10:31. Flag: Clean.
Tags: cars, repairs.
Replacing ignition on my 1999 Jeep Wrangler
Listen in ogg, spx, or mp3 format.

hpr3767 :: LP article from Wikipedia hosted by Archer72

Released: 2023-01-10. Duration: 00:42:41. Flag: Explicit.
Tags: audio, vinyl, record, media, history.
LP article from Wikipedia about the long playing vinyl record and its history.
Listen in ogg, spx, or mp3 format.

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