An AM transmitter for Arduino with four binary inputs to set the pitch of the sound. Pins 2 through 5 may be set to high or low to change the pitch that is being broadcasted. Pin 9 is the ...

Circuit: Arduino-Powered AM Transmitter Circuit: Arduino-Powered AM Transmitter Interested in audio-related projects? One of the most popular Elektor projects in 2015 was Burkhard Kainka's medium-wave ...