No heartbeat while trying to connect Pixhawk with Dronekit

ArduCopter Copter 3.6
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1

Hi everyone,

I’m trying to connect raspberry PI with Pixhawk using dronekit.

In console I can connect to the drone with the command below

mavproxy.py --master=/dev/serial0 --baudrate 921600 --aircraft MyCopter

But I’m getting no heartbeat when I try to connect with the python examples below

vehicle = dronekit.connect(ip="/dev/ttyAMA0", baud=921600, wait_ready=True)
vehicle = dronekit.connect(ip="/dev/serial0", baud=921600, wait_ready=True)

I couldn’t find a way to connect. Can you help me out please?

2

Have you tried without using the “ip=” part, just the serial port?

3

Yes, but unfortunately didn’t work.

4

ok, try setting the timeouts parameters to higher values

5

I add “heartbeat_timeout=30” but I think it didn’t change the timeout time. Am I doing it correct?

vehicle = connect('/dev/ttyAMA0', baud=921600, wait_ready=True, heartbeat_timeout=30)

Unfortunately there is still no change for now, if it’s correct,

6

There are two parameters, the one you asked and just timeout.You are doing it correctly. What exactly is showing after you try to connect?

7

Same output as before. (dronekit:Link timeout, no heartbeat in last 5 seconds)

I finally solved it! I saw in another page that it could be related to bluetooth so I disabled it by simply adding “dtoverlay=disable-bt” into the boot/config.txt in raspberry. Then I reboot the raspberry and it can connect to the Pixhawk now.

Thank you for the help.