The sketch was tested with Arduino UNO R3. The LC-meter can also measure IR remote control modulation frequency and frequency of the digital signal compatible with 5V CMOS logic. Full functionality: ...

1 or more external buttons or switches to control recording/volume/etc. Setup: 1. Change the CE,CS pins below to match your chosen pins (I use 7,8 on 328 boards, and 48,49 on Mega boards) 2. Connect ...

Out-of-date computer peripherals are often consigned to a dusty drawer and forgotten. Why not upcycle those old keyboards and ...