PODCAST · technology
CBA Podcast
by Michai Ramakers
A (mostly un-cohosted) podcast where we talk about progress - or lack thereof - of hobby-projects, mostly related to software, electronics or mechanical engineering.
Episodes
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episode 45: glucometer, fuel consumption and vacuum cleaner
(Michai is too lazy to make shownotes now, check again later. :-)
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episode 44: DMX512, ground reference and LED decoration stuff
Hi, and an extremely good 2021 to all of you. We start off this brand new year talking about some totally unrelated and slightly more related new year's resolutions, a miniscule car fix, and glueing with a 3D printing pen. All in not much more detail than stated here. Continuing on last episode's...
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episode 43: DMM probes, laundry fix and light-hangout
Welcome to a pretty boring episode - just as you're used to by now! Prepare yourself for epic or less epic talk about a mains test jig that proved very useful, some awesome Probe Master DMM probes well worth the money, and both me and occasional cohost Domen fixing household stuff, and the subtle...
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episode 42: exploding cap, 3D-printing and planet decoration
The thrilling tale of 4 months of doing pretty much nothing interesting is coming to a podcast near you today! After hearing about the hilarious exploding electrolytic, we continue with some lame or slightly-less-lame tools one can just buy off-the-shelf: using H-field probes for injecting…
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episode 41: oversized test-jig, spiky LED ball and knowing your equipment
In this time of global turmoil, the CBA Podcast once again proves to be your one-stop source of distraction and meh-grade information. We start off by a quick list of how to keep busy in a sort of useful way, followed by a short talk about a 230 Vac test-jig and designing for test-jig...
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episode 40: xmas smoothness, deadlifts and resistive load
Welcome to the first and so far best episode of 2020, the third year of this podcast. Thanks for sticking around and making this happen, or alternatively, thanks for just tuning in - hope you like it. After a quick word on hot glue applied to mains wires, yours truly talks about being surprised…
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episode 39: crossing borders, intensity curves and anti-theft socks
4.5 months is still not enough to make you forget this podcast, is it? (And also, sorry about the long gap.) Another mixed bag as usual. 2 meetups with the CBA Quality Team for some Quality Time. Eindhoven Hackerspace Hackalot moved to a new location, and I put some LED decorative stuff there,...
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episode 38: LEDstrip fun, rand, and voltage drops
Hi there! Thanks for tuning in (or reading this text and then deciding not to tune in at all). Another episode with a mixed bag of semi-interesting topics. Thanks for the feedback - the inter-segment jingle will be a bit less loud from now on. Poor ears. We start off by counting pass & fail on…
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episode 37: past events, lasercutting and fear of breaking the rope
You thought that we finally learned from our mistakes and abandoned this podcast, and you thought wrong. Once again it's time to lower your standards, and enjoy a new episode of the CBA Podcast. We start with some PCB failures and flaws, followed by a very brief review of the Hackalot lasercutter…
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episode 36: triple screw-up, LED lamp biopsy and bodyfat measurement
After more than 1 month of laziness, let's kickstart this episode with some failures and apologies. Next up is a summary of Hackalot's part in the Open Hackerspace Day 2019, and a teardown of a cheap and somewhat boring Aldi 230 Vac LED lamp. Finally, some very-voodoo and somewhat-less-voodoo...
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episode 35: home sensors, disco LED hack and airplanes
After 5 weeks or so, we're finally back! You'd think this episode is filled with 5 weeks worth of exciting techie stuff, but don't get your hopes up yet. Because it's not. Domen joins in to talk about his experiments with home automation, and a sowing exhibition lacking electronics and software....
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episode 34: Rust, coroutines and cohosting
Finally, the "we" in announcements doesn't just mean the royal we / majestic plural, but there's an actual co-host! Introduction is in the audio contents, so I guess you'll just have to listen. We talk about first contact with the Rust programming language, coroutines for implementing lightweight...
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episode 33: new year's resolutions, SD-card interfacing and programming-meeting
HNY2019! Not a whole lot of stuff to talk about, so this is quite a short episode. You're welcome. After some fluffy and unrelated list of New Year's Resolutions, we talk about progress for a decorative VGA generator device w.r.t. mechanics and software. I had never been to the monthly...
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episode 32: a lying oscilloscope, TV repair attitude and VGA generation
Apologies for the apparently low volume and low tone of voice - I think someone might have been tired. This episode discusses ongoing PCB failures, oscilloscope overdrive recovery, a BT-enabled headphone that would just keep connecting, some local events (GLOW, Awesome Space repair day, and the…
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episode 31: one year anniversary, RC2018/09 results, FPGA and Forth
Yay, after one year we're still polluting the virtual airwaves, so let's review the last year of podcasting (only takes about 8 minutes - don't cry). RetroChallenge RC2018/09 has finished, so we take a look at its winners and honourable mentions. Minor topics include a Hackalot visit, USB…
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episode 30: social stuff, Ruby and a USB logic analyser
Lots of little topics this time, woven together by clever commentary. That's CBA Podcast for you. In the spotlight this time: a shout-out to the Quality Team behind this podcast, impressions from the recent Eindhoven Maker Faire, HCC Retro and Bonami Homecomputer visits, a look back at the…
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episode 29: feedback, cleaning PCBs, scripting again
You can, of course, send feedback to the show using the email-adress listed at the top of the page. Today's episode briefly touches on PCB-cleaning, meta- and actual work for the RetroChallenge 2018/09, scripting-languages (again - a never-ending story), and upcoming local events. Relevant links:...
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episode 28: EMFcamp review, mini-CPU and more PCB-fail
Just back from the ElectroMagnetic Fields (EMF) camp in the UK, so there's a little review of that. Furthermore, we talk about a LED-strip decoration, badge-sized mini-version of an 1-bit CPU, PCB-failures (and successes!), the upcoming RetroChallenge and my entry for that, and 2 small talks I…
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episode 27: new TS100-tip, MP3-player innards and controlling a WS2811 LED-strip
Recorded from my cellphone + external mic this time, so feedback w.r.t. sound-quality (or anything else!) is welcome, as usual. This episode is about getting a new solder-iron tip for the TS100 iron, progress for hand-milling PCB's, a look inside a small MP3-player, and looking at how WS281x…
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episode 26: DIN-rail prototyping, coffee-machine revisited and another zap
To counter the evil midsummer heat, we bring you another cool and refreshing episode. Topics include a 45 Vdc SMD LED, DIN-rail prototyping, reconsidering the workings of a previously disassembled coffee-machine, getting zapped by a vintage coffee-grinder, and an unused yet brand new…
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episode 25: zapped by cap, maze-generation and counting steps
This time, we explore the wonderful world of being zapped by a high(ish) voltage electrolytic cap, some maze-generation algorithms in a nutshell, disassembling a simple step-counter, and starting a scootmobile with a magnet-key.
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episode 24: laundry-machine valve, engraving PCBs, and DPS5005 enclosure
No idea how this episode got so long... Featured(tm): reselling my HP3455A DMM to the person I bought it from, a meeting of the HCC computer-club (.nl) Retro-section, reverse-engineering a overflow-valve for a laundry-machine, making quick electronics-prototypes by manually engraving copper-clad...
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episode 23: sounding dumb, TS100 and bootloaderless programming
Quite a long episode this time - hope it doesn't bore you too much. Topics include the ability to ask silly questions and do silly things, sharing a serial link to an AVR between programming and debugging without bootloader, the portable TS100 soldering-iron, interesting game-console candidates,...
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episode 22: software-development on retro-computers, toaster-disassembly and workshop-equipment usefulness
This episode talks about what happened to my RetroChallenge RC2018/04 project, software-development for yesterday's computers, the last Hackalot-meeting, components with crappy documentation, disassembling a toaster with actual electronics inside, and the usefulness of various engineering-tools...
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episode 21: finishing up RC2018/04, scripting, and finding a new home-computer
This episode wraps up my (hobby)work for the RetroChallenge 2018/04, and talks about a favourite scripting-language or the lack thereof, the use of SD-cards, finding a new pet (or PET..?) homecomputer/console, and NE555-sound. Relevant links: RetroChallenge ...and my Bait-a-Cart project for that...
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episode 20: vintage AC PSU, RetroChallenge and disassembling a coffee-machine
Made it to episode 20, and it's still a lot of fun - I hope the feeling is mutual. :-) Topics of interest: a bit of background about this podcast itself, playing around with a vintage Luctor N.V. Multiset AC power-supply, last weeks' effort for the RetroChallenge 2018/04, disassembling a...
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episode 19: hand-held scopes, disassembling scales, and a digital probe
(First of all, apologies for the many "uhhh"s and "ummm"s you can hear - no idea what was going on there. Edited out a lot, and next time it should be better.) Topics this time are my effort so far for the RetroChallenge 2018/04 (25% in), a short and biased discussion of some available handheld...
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episode 18: low-current LED, IFComp-effort and toaster-autopsy
This episode covers one more PCB-failure (see previous episode for more fail), a LED that would still emit light at a rediculously low current, shortcomings of DIY lasercut stencils from a previous episode, my entry for the upcoming IFComp, disassembly of an old bread-toaster, the RC2018/04 Retro...
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episode 17: connecting stuff, PCB-failure countdown and fixing a microphone/headphone
Only a short time between the last episode and this one, so I didn't do a whole lot of stuff: spent 1 day volunteering at a local Home Computer Museum, decided on a project for the upcoming Retro Challenge 2018/04, went through all PCB-design I've ever made and made a list of common failures, and...
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episode 16: Maker Faire project (again), upcoming stuff and Maker Faires in general
Maker Faire Ruhr (Dortmund, .de) came and went, so this is the last time you'll hear about my project for that - finally. Apart from that, this episode is about hot air soldering and upcoming events, local and remote, on- and offline. recent Maker Faire Ruhr (2018-03-10 & -11) IFcomp (submission...
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episode 15: quickfixing/ignoring weird electrical problems and working on my CPU-project
Not much diversity this time - just doing my best to get ready for Maker Faire Ruhr (Dortmund) on March 10-11. The idea is to bring 2 versions of my CPU-project: the old one (with emulated RAM/ROM on a laptop connected to it), and the new stand-alone one (with RAM/ROM onboard). About 2 weeks to…
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episode 14: shift-registers, latch-up hunting and simulating small circuits
It's been more than "approximately a week", but instead of keeping to a preset schedule, we choose to bring you only QUALITY CONTENT! Just kidding. This time, I'll talk a bit about choosing shift-registers instead of a big fat MCU, hunting what may be latch-up in my logic-boards, simulating...
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episode 13: scope segmented memory, DIY lasercut stencils, and floating reset-pin
Another cohostless(tm) episode, talking about assembling and debugging a digital logic PCB using the Rigol DS1054Z's segmented memory ("waveform recording"), the need for an actual logic analyser, possible clipping of silkscreen layer when having PCBs made, DIY PCB-stencils using lasercut…
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episode 12: test-lasercutting acrylic, Flashing Light Prize 2018, and motor-innards
This time, the whole CBA Podcast team talks about ongoing redesign for the Qibec CPU (preparation for Maker Faire Ruhr 2018), lasercutting lightpipes and bendable mesh-zones out of acrylic for doing tests, my Flashing Light Prize 2018 entry, the surprising (to me) AH276 Hall sensor / motor coil...
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episode 11: grinders, layout-fail and lasercutting/milling acrylic
We talk - again - about angle-grinders, PCB-layout failure because of hasty decisions, and lasercutting vs milling acrylic sheets, in no detail whatsoever. Happy 2018! :-)
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episode 10: digital latch-board, interactive tape-adventure and upcoming competitions
Holiday-chat about progress with my Maker Faire Dortmund project, experiments for a possible UV LED project, ideas for an interactive cassette-tape adventure-game, the Retro Challenge, and the Outline and X demo-parties in the Netherlands.
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Episode 9: Maker Faire project, PCB-manufacturers and Piotr's Arduino Holiday Gift
Another Remi/Han/solo episode this time, where I talk about a small success with iTunes podcast-registration, Maker Faire Dortmund / Ruhr (Germany) and my project for that, the great effort of mounting 4 power-resistors to a metal plate, cheap/fast PCB-manufacturing, and finally Piotr's Holiday...
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Episode 8: iTunes, Maker Faires, and slow digital signals
This time, we (or rather I) talk about trouble registering this podcast with iTunes, past and upcoming Maker Faires around the Netherlands, EMF camp in the UK, a resistive 230 Vac load - for the last time, a DIY box to show/control slow digital signals, and an idea for an upcoming project...
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Episode 7: C64, stumbling-blocks and reasons for making stuff, and a LED-banner board
We push the boundaries of lameness by having a solo-episode, where Michai talks about what he did this week, and Piotr is being emulated here and there by modern technology. The aforementioned Commodore 64 adapter-cartridge reached mild failure, short mentioning of stumbling-blocks and reasons…
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Episode 6: welding, grinding and equipment that can catch fire
This exciting episode, we talk about Piotr's welding, angle-grinders, Michai's kettle-alarm and resistive test-load, and equipment that can catch fire.
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Episode 5: SPI-fail, generous holiday-gifts and more
This episode, we talk about Michai's SPI-bridge fail-project, the Bus Pirate, Arduino-connection 101, USB-connectors, and Piotr's Arduino Nano Holiday Gift.
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Episode 4: hot air soldering, Arduino-robot, and motors
We talk about hot air soldering and being scared to break anything, hobby vapour-phase oven, an Arduino-robot as entry into electronics and software, and (lack of clue about) DC-motors.
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Episode 3: workspaces, homecomputer-troubleshooting, and how to blow up electronics
This time, we talk about workspaces near or in the house, homecomputer-fixing and -troubleshooting, the importance of a correct schematic, and how to blow up electronics.
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Episode 2: home-computers, welding, slippery salesmen, science behind metal-working
We talk about planning to fix home-computers, the anatomy of a weldine-machine, being cheated in the computer-store, and the science and skills behind metal-working. Note: the sound-quality is worse than it should be. We're still experimenting and trying. Eventually it will be OK, so don't cry :-)
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Episode 1: first co-hosted attempt
This time, we'll be talking about equipment that gives ideas, long-term investments, a TV-antenna, chiptunes, and a homecomputer-adapter.
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Episode 0: introduction
The very first episode, where you can hear what to expect in future episodes.
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ABOUT THIS SHOW
A (mostly un-cohosted) podcast where we talk about progress - or lack thereof - of hobby-projects, mostly related to software, electronics or mechanical engineering.
HOSTED BY
Michai Ramakers
CATEGORIES
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