Here’s something fun from [Chad Kapper] over on HackMakeMod: Escape Room Lockbox with the Cheap Yellow Display. You may have heard of the “cheap yellow display” (CYD), so-called due to the board’s ...
init(): Use this in the switch (wakeup_reason) in default: Make it the first entry, so you can use the last function for Battery Voltage. Now includes corrections for the DS3231 and includes detection ...