From: Bdale Garbee Date: Sat, 18 Jan 2020 07:27:53 +0000 (-0700) Subject: notes on how this should evolve X-Git-Tag: fab-old-v4~23 X-Git-Url: https://git.gag.com/?a=commitdiff_plain;ds=sidebyside;h=866cc0b8364b8b30ef526f04a231cadc5cc07edd;p=hw%2Fquantimotor notes on how this should evolve --- diff --git a/Notebook b/Notebook index eb6f56d..2f6fe2e 100644 --- a/Notebook +++ b/Notebook @@ -5,3 +5,20 @@ - add another 2-pin header to PA8 (MCO) so we can sample the master clock to calibrate the SOC oscillator, which means moving the RED RF strength LED to some other gpio line + +2019.10.31 +- The more I think about this project, the more I want to go back to a board + that just does one each load cell and pressure sensor. I just haven't ever + actually used anything else. + + Discussion with Joe Bowen made it clear that if I were to design such a + board so that it could take option cards, and/or had just a pile of basic + analog inputs and maybe switch outputs available, that doing other stuff + could be fun, and we'd "grow the system as we need to". Every time I tried + to pin him down on specs, all I got was vagueness. + +2020.01.18 +- Maybe the right answer is to move to the ADS131A02 which is the 2-channel + version of the acquisition chip, and costs less. That would support one + pressure sensor and one load cell. Then make it possible to add on other + acquisition boards somehow.