Isn’t it time for a full Arduino-compatible keyboard? [ELECTRONOOBS] thinks so. This 41-button Arduino keyboard PCB is a stepping stone to his next project, a pair of two-way texting machines.
The button states could easily be read by using an Arduino’s analog input. A Pro Mini model was chosen for its small size as it could be housed in the radio compartment of the dash. The next ...
The alarm only stops when you press the push button connected to the Arduino. For this setup, the program uses only 27 lines, ...