SiK Telemetry Radio V3 Documentation

Documentation SiK Radio from Holybro

SIK Telemetry Radio Usage and testing

1. Sending AT Commands to a SiK Radio on Ubuntu

Steps:

1. Connect SiK Radio to USB Port:

   • Plug the SiK radio into a USB port on your Ubuntu laptop.

2. Identify the Serial Port:

   • Run the following command to find the connected serial port:

     dmesg | grep ttyUSB
     

   • Look for an output like /dev/ttyUSB0.

3. Install a Serial Communication Tool:

   • Install a terminal program like minicom:

     sudo apt update
     sudo apt install minicom
     

4. Configure and Communicate:

   • Launch minicom and set the appropriate serial port and baud rate (e.g., 57600 or 115200).

     sudo minicom -s
     

   • Enter command mode by typing +++ (without pressing Enter). A response like OK confirms the radio is ready for AT commands.
   • Example AT commands:
     • ATI: Retrieve information about the SiK radio.
     • ATSx=yyy: Update specific settings (where x is the parameter, and yyy is the value).
   • Save settings using:

     AT&W
     

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2. Transferring Data Using Two SiK Radios

Setup Overview

• Two laptops, each with a connected SiK radio via USB.

Steps:

1. Configure Radios:

   • Ensure both radios share matching configurations (e.g., baud rate, net ID, and frequency) using AT commands.

2. Identify Serial Ports:

   • On each laptop, identify the respective serial ports:

     dmesg | grep ttyUSB
     

3. Install Serial Communication Tools:

   • Install a tool like screen on both laptops:

     sudo apt install screen
     

4. Open Communication:

   • On Laptop A:

     screen /dev/ttyUSB0 57600
     

   • On Laptop B:

     screen /dev/ttyUSB0 57600
     

5. Send and Test Data:

   • Type messages in the terminal on Laptop A, and they should appear on Laptop B, and vice versa.

6. Exit:

   • Exit screen with Ctrl+A, then K, and confirm with Y.

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3. Filtering dmesg Logs for ttyUSB

To find the connected ttyUSB device:

dmesg | grep ttyUSB