So I have been messing around with the Do_set_servo command in mission planner but have ended up destroying two servos with it. the PWM was within range as I had them in manual mode beforehand. once I activate auto mode it seems to push them as hard as they can go and once that happens they are fully locked up and non fixable. Any ideas on how to safely use this command or is there another command that would work better?
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If they didn't mechanically break (gears) then it must be electrical. The servo coulnt handle a step change in position input and overloaded the motor driver. If that is the case, then get better servos. There is nothing the controller can do do a servo to fry it, other than over driving it.
Any suggestions as to how to use this command and avoid overdriving future servos? I must be doing something wrong with the commands as I have seen others do the same thing successfully.
You obviously over drove your servos. 1000 - 2000 us should not be too much for most standard servos. Was it mechanically connected ? Your transmitter is probably not going to 1000, maybe 1100. Depends on you endpoint settings on your Tx. When in manual mode the out put value is what ever the input value is. You need to use Mission Planner radio calibrate tab to see what the actual input is. I'll bet it is more than 1000 and less than 2000.
BTW Hitec servos will not strip the gears. They have teeth missing at the right spots on the output gear just befor the end stop.
If you over drive them the motor just spins. When you go back in range the gear re-engages. Pretty cool and simple engineering.
Thanks for the quick response, The servos are connected through the APM. I went into the calibrate radio and the low and high are 1000 and 2000. also the teeth did not strip from the set servo incident, that was my fault as I was trying to get the servo to move, it seems to be something internal that will not allow the servo to move.
