Chris joined the 2010s and got a step tracker, the Fitbit Inspire 3
There are commercially available teardown reports you can buy
One of the sensors on board is well supported in Zephyr. This influences how Chris chooses parts.
The RT500 (discussed by Aeden in episode 638) is supported in Zephyr and targets the smart watch industry
Kalman filters are pretty amazing
Dave blew out his other knee (!) and went to go see a Podiatry specialist to get his gait analyzed. He has “impressively flexible feet”
Dave did a teardown of the classic Boombox from Say Anything
Joe Grand made “The World’s Flattest Boombox” to showcase a piezo speaker. It was a really cool PCB!
Joe Grand was also on The Amp Hour (twice!)
- Episode 60, one of our earliest guests
- Episode 575 in early 2022 when Joe was hacking on Trezor wallets
eBay
Garbage ninjas
Recycling electronics
uSupply video
Part number stuff
Chris has been putting a design through Macrofab. Chris and Parker were on episode 243.
Tempo automation has maybe (probably?) shut down. There was a weird email that Chris shared. After the show, Chris found a post about how they’re down to 7 employees, so probably aren’t manufacturing any boards…
Making a RISC V processor in 100 lines of Verilog!

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