I refer to <sd.h> in my own dbSD.h... but you were right.
I had an old library reference
arduino-libraries/SD
Which resolved to a 2010 library from Sparkfun.
Thanks so much!
I'm doing a test project with a new Teensy 4.1 to upgrade my code from a working Teensy 3.2 project.
I want to use BUILTIN_SDCARD, where I was using a SPI-connected SD card on Teensy 3.2.
On standard TeensyDuino...
Thanks, though I did not grok an answer for Teensy 4.1 from #4.
(I have degrees, but none in EE)
My analog signal measures breath pressure, which varies over a few milliseconds (and I sample it that often).
I end...
I'm in the process of making an Eagle Library device of the 4.1. I did not find one in SnapEDA as noted above.
I'm modifying the 3.6 footprint available in a zip file on the forum.
I noted (as above) the same change...
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