Hello, i'm stuck with a project for the R-pi using the GPIO.
So here's the idea: im a big fan of the Megaman battle network series and im planning to reproduce the battlechip reader to finally build a "working" PET.
I've got with the idea to make it work with the gpio.The card reader will work only as a code reader where 10 pins on a pcb card are in contact with 10 pin of the gpio.On this, 9 pin are used to generate a "code" and the 10th used to supply a small amount of current.
Now the question is: what do i will need to make such add-on, do i need some resistors and such to prevent my R-pi to grilled?
thanks for the help
http://www.google.ca/imgres?um=1&hl=en& ... 1,s:0,i:91
Battlechip to "read":
http://www.google.ca/imgres?um=1&hl=en& ... ,s:0,i:110