keybrd library is an open source library for creating custom-keyboard firmware.
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- #include "LED_MCP23018.h"
-
- void LED_MCP23018::on()
- {
- Wire.beginTransmission(port.ADDR);
- Wire.write(GPIO);
- Wire.write(port.outputVal &= ~pin); //set pin low (sink)
- Wire.endTransmission();
- }
-
- void LED_MCP23018::off()
- {
- Wire.beginTransmission(port.ADDR);
- Wire.write(GPIO);
- Wire.write(port.outputVal |= pin); //set pin high (sink off)
- Wire.endTransmission();
- }
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