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Welcome to the Armband wiki! just a little project to monitor my environment while I'm out and about. initial plans include a RP2040 chip with 4-16 MBytes of spi storage. ESP8266 companion to have network access. Mostly for NTP. There are several RP2040 boards out and about. But none with all the features I want. Most have undersized 3.3v regulators. They will power a few sensors and drive several outputs. But can't drive the ESP8266 and the sensors and the I/O. Going to try and keep Peak current draw to under 1.6 amps and noiminal current draw to under 100mA.