Adding Standard LEDs using the MPR121
If you are using an MPR121 for the slider bar, and wish to hook up LEDs to it and have a few spare channels, you can use it to drive LEDs.
Supplies
- A guitar with a WT or GH5 slider bar, that has spare channels on the MPR121
- Some LEDs
- The correct current limiting resistor for your specific LEDs
Steps
- Connect your LEDs to unused channels on your MPR121. The cathode of each LED connects to ground, while the anodes are all connected to each LED, through a current limiting resistor.
Programming
- Click on the output you wish to configure LEDs for, and then click on the channel next to
Selected LEDs on MPR121