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Well done man👍 The bin full sound is very loud. You shouldf maybe have your microcontroller send out an sms text message to an operator to come and empty the coin bin and possibly a redivert flap so when someone puts their coin in the machine that is too full, that the coin doesn't n make it to the bin and instead goes straight to the returned or rejected slot? Last thing that i would like to suggest is that maybe you can have a button to select power output to USB charge cable, but maybe also wireless charging? The reason I mentioned this is because there are a number of mobile attack vectors available now on the web that allows hackers to hijack a persons phone directly when they plug it in for recharging? Allowing output to wireless charging is a means of preventing phone hacking whilst still allowing phone charging👍 Good luck with this project
