Automatic coin counter

Intro

I did not found any coin counters, but can found good sorter. Simple china coin acceptors (616 or 916) can produce different quantity of pulses for each denomination. What if i use feeder of sorter?
I designed holder for coin acceptor that to be able to mount to feeder.
Also, i added bulge to rotor wheel to be able to destroy coins batches.

Details to print

Print stands, mini ilnet, large gear, 1mm spacer and funnel from original thing. 6 details.
Print shaft and motor frame from ovalko`s remix.
Print both boxes, 6 buttons and motor coupling from DK0975`s remix.
Finally print my models.

Electronics components

LCD keypad shield.
Arduino UNO.
TB6600 stepper motor driver.
Nema 17 stepper motor.
Tangle of wires.

Firmware

Use this
Up/Down to change rotor speed, select to save it. Use reset to zeroing.
To turn ON or OFF rotor use switch. It shorts Enable pin of TB6600 to 5v. Otherwise rotor will rotate endless.