Simple MIDI file player using SD card for file storage and Pro-Mini Arduino as processor. With SD card in place, pressing the START button, turns on a relay and after 3 seconds, starts playing a MIDI file. At the end of the file, relay opens, file que moves to the next file on the card and waits for a new START button press. Additionally, there are three other buttons, SKIP/STOP, Pause/Play and Continuous Play. The START button is paralled across a set of contacts that can sense a micro-switch in a coin chute. LED indicators on the circuit board indicate power, error, ready, relay closed, continuous play and a winking one when the file is playing properly. Upgrade of the SdFat library since March 29th. is causing compiling error. Earlier versions of the library work OK. I can provide multiple versions of the program and re-writes and hardware if necessary.
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Hello I have an experience to work on the midi with arduino. I can show my previous project with arduino as midi with a abelton software. I have noted the details that you mentioned. Thanks Chanchal