CR Units

[Drunkenclam]

Next part, Didn't like the way sensors mounted in the original card reader and getting the card contacts to work was a nightmare, In the end I brought the C-702 card reader with electric release.
This isn't just a plug in to the CR dongle as the pin configuation is different between the 2 units, Also the card detector switch is the reverse compared to the one Daverob supplies.
Built a small board so I can plug in the C-702 then plug a ribbon cable in the other end to go to the dongle. Also on the board are 2 opto isolaters. One tells the dongle if there is a card present. The other will add credit onto the card at a later stage. Next to this is a small dip switch. This connects to the rh button on the pachinko. If off it sends the signal to the dongle (for setup, add credit) When switched on. The signal goes to the arduino unit instead to trigger the card release solenoid. Now here I did make a slight error. Its not a problem but I got the 12v card release. It would have been easier to get the 5v version as then would only need one set of voltages. As it is, the power supply in the CR unit has a 5 and 12 volt outputs anyway.

So here is a basic video of the test rig.
Starting with the --- on the screen as no card is entered.
Insert the card and see availible credit/ Release some balls and add credit.
Turn dip switch from off to on.
Press to release the card. I could do with a different resistor here as the coil isn't as sharp as it could be.
Display goes back to ---