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chrisgammell.bsky.social
Electronics person
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probing a 20V rail with a DMM and my watch decides to buzz the "time to move" reminder right as the DMM leads make contact...

I've gotta up my demo game. Tried showing my nephews and niece my "cool electronics" that I brought with me. Turns out that an embedded cellular device that interacts with the internet is just par for the course. Needs more blinky or bombastic output. Good test audience though!

I talked about my upcoming solar install on TAH this week. Also wacky tariffs, peak power pricing, tiny electronics (AirTag clone course), oscilloscope triggering, and more. Fill out our 2025 Listener Survey to be entered to win a Jumperless (OG) Breadboard! theamphour.com/692-like-a-s...

Despite being a casual user, I'm deeply uninterested in the future of AI. I can't tell if I'm due to be removed from the "tech gene pool" or if I'm immune to some kind of manic mind virus. Every time a breathless piece about the amazing advancements of the technology pops up, I'm reminded. Ah well.

Hardware decisions are expensive over the long term. What if you could simulate a huge range of chips at the beginning of your design to determine which one to use? Michael Gielda of Antmicro and I spoke on about understanding your problem space in intricate detail theamphour.com/691-system-d...

This looks awesome! Such a high density design with really amazing capabilities

I've been challenging myself to make some really tiny PCBs using Bluetooth chips (nRF52840). I talked about it on TAH this week (among other things), and hope to share the boards soon. theamphour.com/690-clap-on-...

What happens when you take a switch matrix and allow any net (strip) on a breadboard connect to any other net? Well, really interesting things, it turns out. I talked to @architeuthisflux.bsky.social about the Jumperless breadboard and how it all works theamphour.com/689-a-jumper...

I'm a simple woman who enjoys drag soldering

This week on The Amp Hour: the Tandy 200, test equipment cashflow, the return of the Pebble watch, GPT trying its hand at CAD, solar output...and more https://buff.ly/4aUVzQ6

Update: send more pickles, these didn't work

I've been waiting my whole life to play this concert. If you're near #MadisonWI weekend after next, come watch Star Wars while a live orchestra plays the incredible John Williams score live.

Current status: taking mental health advice from a pickle container

I chatted with the embedded team at @raspberrypi.com about the #RP2350 on The Amp Hour. It's an amazing "dual dual-core" part that is finding its way into many products. We chatted #hardwaresecurity and #lowpower, as those were key enhancements over the #RP2040. theamphour.com/687-the-rp23...

OpenAI's nightmare: DeepSeek R1 on a Raspberry Pi 5 ;) www.youtube.com/watch?v=o1sN...

I chatted with the embedded team at @raspberrypi.com about the #RP2350 on The Amp Hour. It's an amazing "dual dual-core" part that is finding its way into many products. We chatted #hardwaresecurity and #lowpower, as those were key enhancements over the #RP2040. theamphour.com/687-the-rp23...

The US President is currently blocking our infectious disease early warning system by cutting off communication between the CDC and the WHO—communication that is *essential* to the health and wellbeing of the country he purports to govern. He is putting every American at risk.

I'm going to start a regular stream about #opensource silicon. Topics will include design, verification, #fpga, openlane, formal, #tinytapeout, #ASIC bringup, chip validation. If you're interested, please let me know what days / times work for you: doodle.com/meeting/orga...

Very happy to see @thejazzemu.bsky.social made it over here from the other place. This song from the forthcoming new album is higher budget, higher weirdness, and listening to it makes me feel high. Check it out. www.youtube.com/watch?v=xKm7...

2025 is the year of the Pick and Place Desktop! :-D Well...maybe for me? I enjoyed recording with @hawes.dev about the @opulo.io Lumen and all of the experiments and successes as they have built up the company and open source machine I hope to have some day. theamphour.com/686-a-bencht...

For the #makergiftexchange last week with friends, I made a POV clock. Using one RGB LED and a seven segment display, it draws up to 21 characters and a full circle of 180 virtual pixels on a spinning circular PCB. Loosely inspired by Bob Blick's "Propeller Clock." 🧵1/3

2025 is the year of the Pick and Place Desktop! :-D Well...maybe for me? I enjoyed recording with @hawes.dev about the @opulo.io Lumen and all of the experiments and successes as they have built up the company and open source machine I hope to have some day. theamphour.com/686-a-bencht...

I used to get upset/scared when people talked about how we're almost certainly living in a simulation. Now I'm rooting for it.

What's this? Oh, nothing much. Just KICAD VERSION 9RC2 dropped! We are only a couple weeks away from the final release. Test out the nightly builds now and see if you can find any showstoppers that we can fix before that happens. forum.kicad.info/t/stable-ver...

I've been building a new API for #KiCad for the past year, and we're getting ready to release the first version of it with V9 at the end of the month!

This week at @golioth.io I have: - Done PCB rework - Written embedded firmware - Written network and backend cloud services - Implemented additional platform observability tooling - Moved some manual provisioning of infrastructure into IaC It's a great time to join a full stack startup!

Was thinking of this video that @thea.codes posted the other day. This needs to be overlaid with the music from the Sesame Street pinball song or something :-D www.youtube.com/watch?v=Hcx4...

Doing a deep clean after the wildfires and found The Cursed Cable (NAS UPS cable, I think). Into the “misc weird cables” box it goes…

I want to see this chart with only electrical engineers segmented out.

I'll be streaming on open source silicon in about an hour: www.youtube.com/watch?v=jz_i... come and join me! #asic #opensource

After several failed attempts using a complicated technique, I successfully sewed a simple pattern to make a SMD resistor phone case. I forget to fully include the seam allowance in the size computation, so it just barely fits my phone. It makes a nice set along with my PTH resistor glasses case!

After stating for literal years, "oh I should install octoprint on a Pi", I just successfully printed from the console for the first time. It was, of course, super easy to do. Procrastination is a helluva drug.

Utilizing LLMs for a variety of tasks has been akin to trying to solder by grabbing the wrong end of the iron, saying "ow", and then saying, "ah yes, but what if I now grab the wrong end of the soldering iron for this OTHER task over here?"

How old am I ? Why I'm "explain to my kids that they really should listen to the next verse in this Dylan song" years old

#meshtastic on the RP2350 Stamp? It's more likely than you think!

I'm crawling profiles to find (electronics) people i used to follow on twitter. What accounts are great at posting others' stuff so I can do less work? Thanks ~ Lazy person

**This Website is Hosted on Bluesky** This weekend I found myself digging through the AT Protocol specifications and the Bluesky Personal Data Server (PDS) implementation. In doing so, I discovered that I could setup a website that is fully hosted on Bluesky. danielmangum.com/posts/this-w...

Hello Bluesky! Golioth's Head of Engineering, @danielmangum.com, is at it again with a new way to post to Bluesky: via microcontroller. Learn how Golioth Pipelines can be configured to route data to any location, including AT Protocol data repositories. blog.golioth.io/posting-to-b...