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  1. Thanks for the tip! I'm on Orange Pi Zero running 4.10.1-sun8i After importing pySerial, I tested this code: import serial port = serial.Serial("/dev/ttyS1", 115200, timeout=1) print(port.name) Unfortunately it fails with 'serial.serialutil.SerialException: Could not configure port: (5, 'Input/output error')' Listing the ports using: python -m serial.tools.list_ports , results in "no ports found" I also tried adding the port using overlays as suggested in this post : https://forum.armbian.com/index.php?/topic/3651-uart-on-orange-pi-zero/#comment-26402 Any other suggestions? Thanks, ezpl
  2. I am just getting started using the Orange Pi Zero and installed Xenial 4.10.1. Currently I am using Python and am able to address the GPIO pins (using this project: https://github.com/duxingkei33/orangepi_PC_gpio_pyH3) However, I need to communicate with a serial device (projector) using RS232 on 9600 BAUD. For this, the built-in UART should do the trick (with an additional voltage converter). Does anyone know how I can address this device from Python? Alternatively, is there a way to clock" an GPIO output to 9600 BAUD and manually send the data? Thanks, Ezpl