# Example programs for Communication Protocols

- [GPIO](/ruggedboard/lib-mraa-and-upm-sensor-libraries/example-programs-for-communication-protocols/gpio.md)
- [I2C](/ruggedboard/lib-mraa-and-upm-sensor-libraries/example-programs-for-communication-protocols/i2c.md)
- [UART](/ruggedboard/lib-mraa-and-upm-sensor-libraries/example-programs-for-communication-protocols/uart.md)
