Custom Firmware for Elecrow Watering Kit 2.0/2.1 (Board: Arduino Leonardo)
Product: https://www.elecrow.com/arduino-automatic-smart-plant-watering-kit.html Elecrow firmware: https://www.elecrow.com/download/watering_kit.zip
https://wiki.liutyi.info/display/ARDUINO/Arduino+Automatic+Smart+Plant+Watering+Kit+2.0 https://wiki.liutyi.info/display/ARDUINO/Custom+firmware+for+Elecrow+Watering+Kit
watering-kit.ino - for Hardware version 2.0, watering-kit-hw2_1.ino - Hardware version 2.1
hw v2.1 need external programing using ICSP contacts on board. USB flashing not work anymore (