Desk of Ladyada - Hot Summer Sunday Stemmas!
Woo it is sweltering, which means we got to stay in and do a bunch of engineering. This week we spent a little time finishing up some languishing boards - Stemma QT version of the SCD40/SCD41 and IS31FL3741 chips - we wrote libraries for both as well! We also are dealing with a massive SAMD51 shortage by redesigning some recent boards like the Matrix Portal to be S2 only (so at least there's only one chip to source!) The Great Search - BSS138 Dual N-Channel FET Alternative Replacement https://www.digikey.com/short/5hh9bz4w We use hundreds of thousands of the famed dual BSS138 n-channel FET in…
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