An RC boat sound module playing wav file from an SD card. 9 different files can be selected through a spare RC channel on the receiver (pwm signal) connected to the Arduino. This code is based on the TMRpcm library (https://github.com/TMRh20/TMRpcm)
gigasam/Arduino-sound-module-for-RC-boat
A RC boat sound module playing wav file on an SD card
C++MIT