I'm new to this forum so let me know if I'm posting in the wrong place.
Having trouble finishing up my very first build. I'm using SP Racing F3 FC (betaflight 3.1), racerstar 2205 2300kv motors, 20a 4in1 esc, with xm+ n taranis x9d+.
Finished the build started having trouble in betaflight as motor stop is not working. I arm the motors n nothing, no motor spin. But if I hit throttle it lifts to hover. I set it back down n motors 1 n 2 begin to throttle up in synced. I can only stop this by disarming. Second I noticed if I input right the copter tries to pitch forward n if I move left it tries to pitch backward. Hoping someone knows what's going on here, I suspect it's some kind of setting things up in the taranis I'm missing. I've checked n rechecked solder points over n over n can't see any problems with my soldering. If anyone can't help fix so motors spin when armed, motors stop spinning if no input n inputs correlate to copter movement.

Check your channel order possibly (AETR, TAER ect) make sure your stick inputs match the correct channels in BF.

Edit: Also what is your min_throttle set to? If set too low motors may not spin at idle when armed.

(27-Apr-2017, 08:47 PM)Drone0fPrey Wrote: Check your channel order possibly (AETR, TAER ect) make sure your stick inputs match the correct channels in BF.

Edit: Also what is your min_throttle set to? If set too low motors may not spin at idle when armed.

I got most of it figure out by using the cli n calibrating esc's - now the only problem is the morots 1&2 begin accelerating n won't stop until I disarm

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But yes that was the issue - I had to Chanel map n calibrate esc's - I'll be good to fly if I can get motors to spin n stop as commamded

If you have:

1. Made sure your channels go from 1000 to 2000
2. Calibrated the ESCs properly.
3. Used the motors tab to see what level the motors spin up at.
4. Set the minimum throttle appropriately.

Then when you arm the quad, the motors should start to spin (unless you have enabled Motor Stop, which we would advise you not to). You should then be ready to fly.

Do not arm the quad on the bench without propellers to test the motors. When the quad is armed, the flight controller's PID loop is active. It will be trying to fly the quad. So if the quad isn't perfectly level, it will change the motor outputs to correct. If there are no propellers fitted, the flight controller will not see a response and try even harder and start speeding the motors up more and more in an effort to get a response to its commands.

1. Made sure to set channels to min1000, mid1500 n max2000 in taranis n betaflight (found a YouTube video how to)
2. Calibrated esc's using Oscar liang guide on his blog.
3. Don't understand the motors tab. I can make the motors spin n stop, ok - not seeing how that could help at all but ok, done.
4. Set min throttle appropriately? Not sure here either. In the tab I have it set to 885 (Joshua Bardwell) on my taranis n in betaflight I set it to 1000 n set min_command=1000
5. Nothing has changed same problem exists
Can I upload a video here to show u?

(29-Apr-2017, 07:24 PM)Simply_6 Wrote: 1. Made sure to set channels to min1000, mid1500 n max2000 in taranis n betaflight (found a YouTube video how to)
2. Calibrated esc's using Oscar liang guide on his blog.
3. Don't understand the motors tab. I can make the motors spin n stop, ok - not seeing how that could help at all but ok, done.
4. Set min throttle appropriately? Not sure here either. In the tab I have it set to 885 (Joshua Bardwell) on my taranis n in betaflight I set it to 1000 n set min_command=1000
5. Nothing has changed same problem exists
Can I upload a video here to show u?

Min_throttle should end up around 1050-1070 or so.
Go to motors tab with props off. Slowly raise master slider (use up/down arrows while selected for +-1 increments) note the number where ALL motors spin nice and smooth. Add 20-30 points to that number and set that as your min_throttle. This will be your "idle" speed when armed and keeps your motors from stopping while at zero throttle when doing certain maneuvers.

Edit: videos are always helpful

And check your board orientation also, you can see this in setup tab, if you move the quad to the left then the model must also going to the left and check this for every direction.