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jaindinkar/UbuntuSerialCom.md

Created May 12, 2025 04:16
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Initiating Comand Line Based Serial Communication Using Minicom Serial Terminal on Ubuntu Linux
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UbuntuSerialCom.md

Connecting the device capable of Serial Communication to your Ubuntu System:

  • First requirement is that you should have a device(uC) that can communicate Serial Messages through UART.
  • Seconly you should have a UART to USB interface(CH340) that can enable transmitting UART on USB like this one.
  • Connect your device to interface (generally have 4 wire connection: VCC, GND, RX-TX, TX-RX).
  • Plug the the USB interface to the Ubuntu System.

Detecting the Interface Device Recently Connected:

  • sudo dmesg | grep tty (Gives the recently connected tty device, remove pipe to get all the device) Output
[    0.263153] printk: legacy console [tty0] enabled
[120203.721029] ch341-uart ttyUSB0: break control not supported, using simulated break
[120203.722217] usb 1-2: ch341-uart converter now attached to ttyUSB0
  • ll /dev/tty* (lists all the tty interfaces available on the system)

Communicating using minicom as serial message exchanger:

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