https://wiki.johnharrison.cc/ 2026-07-31T03:09:55+00:00 https://wiki.johnharrison.cc/ https://wiki.johnharrison.cc/lib/exe/fetch.php?media=wiki:dokuwiki.svg text/html 2026-07-28T11:34:40+00:00 John Harrison (john@undisclosed.example.com) https://wiki.johnharrison.cc/doku.php?id=lwc:hardware:arduino&rev=1785238480&do=diff * <https://randomnerdtutorials.com/interrupts-timers-esp8266-arduino-ide-nodemcu/> * <https://circuits4you.com/2017/12/08/esp8266-external-interrupt-example/> * <https://www.switchdoc.com/2015/10/iot-esp8266-timer-tutorial-arduino-ide/> * <https://arduino-esp8266.readthedocs.io/en/latest/reference.html#timing-and-delays> * <https://www.linksprite.com/wiki/index.php?title=Audio_Jack_Modem_Arduino_Shield_for_iPhone_and_Android> * <https://www.st.com/resource/en/application_note/an4503-e…