A portable Arduino timer. Has two different modes: one where it counts up, and one where it counts down. The user interface is done through an LCD screen, and the input comes from 2 push buttons. The ...
March 3, 2021 - Implemented the recommendation from @moononournation that changes the variant.cpp file to be compatible with the SPI1 pin definition in the SPI.cpp file. This simplifies the sketches ...