Revision as of 19:13, 26 January 2021 by Chao(talk | contribs)(Created page with "== Logic circuit == 1n4148 5V-3.3V * http://circuits4you.com/2016/12/14/io-level-conversion-esp8266/ * https://forums.adafruit.com/viewtopic.php?f=25&t=117259 * https://electr...")