I have spent a very frustrating day today trying to set up my Arducopter with the new motors (the optional 880kv ones from FahPah) and new Hobbywing Platinum ESCs. The APM was working fine with the original ESCs and motors.
The problem is that, having wired everything up and initialised the EPROM I then tried to calibrate the radio and the configurator would not recognise any signal from the radio. I have checked everything, the receiver will drive a servo on all channels if attached them directly, but plugged into the APM does nothing at all. Even with the ESC's unplugged I get nothing. I have tried two different receivers and have rebound each of them multiple times.
So far as I can tell, the APM is working fine otherwise. I can see it in the Serial Monitor and the gyros and accelerometers are doing what they should. I can upload new sketches and it all seems to be working normally.
I am worried that the APM is broken. Have I inadvertently damaged it?
I am running the RC2 code.
Any help would be appreciated.
Right, that is what I was trying to say...everything on the receiver is upside down. (except AUX2 if it is 3 wires) I don't have an AR8000, but the 3 spektrum RXs I do have, when the branding/label side is up, the signal pins are the upper/inner row and the ground is the lower/outer row. So it looks like he plugged all the Arduino inputs into the RX ground pins.
But looking again, even the AUX2 looks odd: from the top brown, black, red. I hope that is just shadows and compression. Or is it just power/ground with no signal?
Take a close look at the top of the label on the AR8000 receiver. Notice that the label shows: "-", "+", "_| |_". That means that the receiver output signal is on the bottom pin which is the reverse order of my AR500, AR600 and AR7000. I also have an AR8000 and it is definitely the reverse of my other Spektrum receivers.
Yep. I see it now, between ELEV & AIL.
Good consistency across product lines. Not.
So, I'm out of ideas.
The CLI ESC calibration routine only works with the FahPah ESCs. For other ESCs you'll need to calibrate them using whatever instructions came with the ESCs. this will probably involve connecting the ESCs directly to the Receiver.
As a test that you haven't broken anything, how about switching back to the original motors and ESCs that were working fine?
If you have a voltmeter can you check the voltage comiung out of the ESCs? probably best to check the voltage coming out of the power cable that comes out of the power distribution board.
Hi Randy. I have tried setting it up with the other (original FahPah) ESC's and the power distribution board. Exactly the same result. The bottom line is that unless the APM recognises a signal output from the receiver then it makes no difference at all what ESC's are attached because nothing I do with the transmitter is passed onto the ESCs anyway.
I checked all voltages ESCs and an external BEC I have been using for testing and they are all within a smidge of 5.3v.
Thanks again for your help.
I'm afraid i'm out of ideas. Better contact Chris and/or Jordi and point them at this chat. Maybe they have some other ideas.