Use the Raspberry Pi Serial Port to Connect to a Device
This example shows how to create a connection to a serial device, write data to the device, and read data from the device.
Control a Four-Digit Seven-Segment Display Using Serial Port
This example shows you how to use the serial UART on Raspberry Pi hardware to control a four-digit seven-segment display.
Serial Port on Raspberry Pi Hardware
Troubleshoot the Raspberry Pi Serial Port
Troubleshoot Serial Port on Raspberry Pi Hardware