In the above circuit diagram, you can clearly see the complete layout ... playback using Bluetooth technology - the same module used in our AM demonstration. Arduino based Audio Spy Bug using NRF24L01 ...

DIY Airbus A320 overhead cockpit built using 3D printing, MobiFlight, Arduino Mega, and LED indicators. Open-source project with wiring diagrams and STL files ...

tested with Arduino UNO mounted on connection board, is extremely slow doesn't work with Arduino MEGA on connection board with switch set to ICSP and pins bent out of way, reason unknown not tested ...