I'm trying to use the sparkfun button pads on a project. I'm using the Maxuino patch to control the Arduino with the standard firmata.
I'm currently having problems controlling the LEDs on the button pads. I tried connecting each of the RGB inputs on the sparkfun pcb to 5v and the led grnd connections to the arduino pins and I can get the LEDs to turn on and off when I switch the output pins within Maxuino.
My question is: how do I control the colour of each individual led through Maxuino? I'm using the tri colour LEDs from cool components. Can someone post up a wiring diagram or help me out with this as I can't seem to figure it out? Any help would be appreciated.
Basically each component colour of the LED (and current limiting resistor) is wired up to a septate output on the arduino. Can you post a link to what sort of LED you have, the diagram will depend on if it is common anode or common cathode.
If I wire them up seperate from the sparkfun PCB into my arduino I can change the colours and everything using the output pins. Butr when I have them wired into the PCB the colours don't seem to change and the LEDs just turn on and off. I can only change the colour by physically changing which RGB input on the pcb is connected to the 5v on my Arduino.