Connection between QGC and PC(Windows 10)

StrawberryRabbit · December 6, 2021, 8:32am

Hello guys, Im studying MAVLINK system. Now I’m developing virtual device which simulates PX4 on PC.

So im tryting to connect my Windows PC with QGC system through SIK Radio Telemetry.

Windows10, (python) PC connected with telemetry1. (by USB)
Any device running QGC and connected with telemetry2. (by USB)

I think I know how to make two telemetries transmitting and recciveing messages. But, I dont know how I can make QGC’s state as ‘Connected’. (like, what messages must be sent, which should be receieved, etc.) Here’s my brief code.

github.com

ddalkyTokky/MAVLINK/blob/main/test.py

'''Green LED blinking – searching for another radio
Green LED solid – link is established with another radio
Red LED flashing – transmitting data
Red LED solid – in firmware update mode'''

import time, os

boot_time = time.time() * 1000

# Import ardupilotmega module for MAVLink 1
from pymavlink.dialects.v10 import ardupilotmega as mavlink1

# Import common module for MAVLink 2
from pymavlink.dialects.v20 import common as mavlink2

from pymavlink import mavutil

if __name__ == "__main__":

    the_connection = mavutil.mavlink_connection('COM5')

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aamirglb · December 7, 2021, 6:11am

@StrawberryRabbit,
QGC expect a HEARTBEAT message from the vehicle for it to show “Connected” status.

For an example on how to send a heartbeat message to QGC, you can refer the Mavlink Developer Guide.

For a C language example, you can refer to mavlink_udp.c.

Hope it helps.

StrawberryRabbit · December 10, 2021, 6:02am

thank you for your reply! Ill try what you suggested!