A simple concession ticket dispenser using:
- Arduino Uno Rev3 : http://store-usa.arduino.cc/products/a000066
- Deltronic DL-1275 ticket dispenser : http://www.deltroniclabs.com/?post_type=product&p=165
- Membrane 3x4 Matrix Keypad : https://www.adafruit.com/products/419
- Adafruit 0.56" 4 digit 7 segment display w/I2C Backpack : https://www.adafruit.com/products/881
- Enter # to dispense, hit # on the keypad, it dispenses then resets
- Display updates as you type in your #
- State machine that will only allow a ticket to be counted if certain conditions exist to cut down 'bad' counts
- Empty roll detection - if 3 seconds passes without detecting a ticket, it will automatically cut-off. Time is adjustable.
- Cancel active job by pressing asterisk *
- Entered over 4 digits, program resets (limit of display)
- If you hit the process key (#) with no numbers entered, it resets
- Deltronic DL-1275 ticket dispenser : http://www.deltroniclabs.com
- Blue Wire : 12 : Optical sensor (ticket count trigger)
- Black Wire : GND : Ground
- White Wire : 11 : DC Motor driver : on/off
- Red Wire : Vin : 12V constant
Using Membrane 3x4 Matrix Keypad : https://www.adafruit.com/
- http://playground.arduino.cc/Code/Keypad
- https://www.adafruit.com/products/419 (keypad_test source)
Using Adafruit 0.56" 4 digit 7 segment display w/I2C Backpack : https://www.adafruit.com/
+= 5v-= GNDD= A4C= A5