UART Transmit

  • Most microcontrollers only use 3 communication protocols: SPI, I2C, & UART. We'll study UART.
  • UART is nice because computers also use UART (which they call simply Serial communication)
  • The only UART library function we'll use is OpenUSART
  • To transmit data we'll use the printf command which magically knows to use the UART.