Hi ,
I am using the following python code to take off the drone in jmavsim 
from pymavlink import mavutil
import time
Create the connection
master = mavutil.mavlink_connection(‘udp:localhost:14540’)
Wait for the first heartbeat
master.wait_heartbeat()
Set the command type to MAV_MODE_FLAG_CUSTOM_MODE_ENABLED
custom_mode = 4 # 4 is for LOITER mode in PX4
master.mav.set_mode_send(
master.target_system,
mavutil.mavlink.MAV_MODE_FLAG_CUSTOM_MODE_ENABLED,
custom_mode)
Arm the drone
master.mav.command_long_send(
master.target_system, # target system
master.target_component, # target component
mavutil.mavlink.MAV_CMD_COMPONENT_ARM_DISARM, # command
0, # confirmation
1, # param 1, 1 to arm, 0 to disarm
0, 0, 0, 0, 0, 0) # param 2 ~ 7
Takeoff
master.mav.command_long_send(
master.target_system, # target system
master.target_component, # target component
mavutil.mavlink.MAV_CMD_NAV_TAKEOFF, # command
0, # confirmation
0, 0, 0, 0, 0, 0, 10) # param 1 ~ 7 (param 7 is the target altitude)
Monitor the flying status for a while
for _ in range(100):
print(master.recv_match().to_dict())
time.sleep(1)
But the drone in jmavsim doesn’t take off. I have tried taking off from the terminal by typing commander takeoff and it takes off. I am running the latest version of the code. Could someone let me know why is this happening ?
Thanks.
