Not Working for JJRC H37

[praveeno]

@3demax I tried to run kbd_flight.py with default spin_up command, but its not working

[3demax]

Did you connect any joystick? Without one, it wouldn't work now.
I've updated the code do show you the name of the joystick connected (is any), in this commit:

[praveeno]

hey @3demax ,
actually i comment all joystick releated code, so i can control it programatically
and use cmd = 'spin_up' by default in main_loop,
so a/c code flow, it should work

[praveeno]

@3demax hey did you got time ?

[3demax]

Hi @praveeno, I don't want to develop this project anymore. It was fun and I hope someone will find it helpful, but I will not actively developing one.
Despite that, feel free to submit PRs! I'll do my best to provide suggestion if needed.

To recap, this is my last reply on how you can use the code to control the drone programmatically:
If you are looking for an API to control the drone from code, the module you are looking for is drone.py. All that is really needed is to send the command string on some interval, like how it's done in kbd_flight.py:

drone_command = drone.get_command_string(
    roll=roll, pitch=pitch, throttle=throttle, yaw=yaw, command=cmd,
    altitude_hold=True
)  # assembles encoded command string
drone1.execute(drone_command)  # sends encoded string over UDP to the drone

Your job is to send the encoded string to the drone frequently (in my tests, 60Hz is enough, 120Hz is slightly better). Note that you need to send a command sequence even if your inputs doesn't change (if you have no command to the drone). Otherwise the drone may think the connection is lost and will initiate automatic soft landing.

If I would need to implement this, I would have something like a list of instruction to the drone and a loop with the timer:

FREQ = 1.0/60.0  # theoretically, the lower it is, the more responsive drone is. test and adjust if needed
instructions = [
    (0, 0, 0, 0, 'spin_up'),  # turn motors on 
    (0, 0, 0.5, 0, None),     # go up
]

for instruction in instructions:
    drone1.execute(drone.get_command_string(*instruction, altitude_hold=True))
    time.sleep(FREQ)

# send command during the idle time to keep the drone under control
condition = True
while condition:
    drone1.execute(drone.get_command_string(0, 0, 0, 0, None, altitude_hold=True))
    time.sleep(FREQ)

You would probably need to add durations for instructions to make it work, but it shouldn't be hard if you are familiar with python.

[praveeno]

Thanks @3demax, I'll update you on process status