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Connection UART serial


Serial pins are the most used pins for DIY users. You can connect to a USB UART adapter as in the picture.


Linux (ubuntu)/MAC

In Linux or OSX, when you plug the USB UART adapter to your computer, the driver should already be installed. Check if you have device registered.

$ls /dev/ttyUSB*

you need to have kermit to connect to serial.

$sudo apt-get install gkermit

Then you need to make the configuration file for kermit: ~/.kermrc. The content should be:

set line /dev/ttyUSB0
set speed 115200
set carrier-watch off
set handshake none
set flow-control none
set file type bin
set file name lit
set rec pack 1000
set send pack 1000
set window 5

Now connect to the device using root:

$sudo kermit -c
Connecting to /dev/ttyUSB0, speed 115200
 Escape character: Ctrl-\ (ASCII 28, FS): enabled
Type the escape character followed by C to get back,
or followed by ? to see other options.

When you have finished, press Ctrl-\ then c to quit kermit.


When connecting the USB UART adapter to your computer, you may need to install drivers for them. The drivers can be download here: somewhere.

Now you will be able to find the serial COM port (in this example: COM3) in device manger.


Install a terminal software. putty is recommended. You need to set COM port COM4, speed 115200 and connection type Serial. Click "Open".


You will be displayed a black window. If you turn on your device now, you will see the console output of the box.


Dual Serial connection on Domino Pi

Domino Pi has dual serial connection, please refer to Domino Pi Serial for details.