If anyone can help I'd greatly appreciate it. This is my first quad.
I calibrated the ESCs one at a time and verified the motors are controllable individually with the radio.
Connecting it to the APM2, nothing happens though. I connect to the PC and the radio calibration doesn't show any input. The bars for all the channels stay grey.
When I try to calibrate and click done the ESCs start beeping...which I guess makes since since calibration never happened.
In CLI mode, it gives me a warning that the radio needs to be set up, but when I enter radio setup, it just hangs at "Radio Setup:" and says nothing else.
Any idea what's going on? Attached are a couple of pics to show how I'm connected to my AR8000.
The transmitter values are at default for helis.
Also when I go into CLI mode, I get the weird characters in one of the attached pictures
I checked the Rx PWM signal with an oscilloscope and the Rx does increase the PWM signal correctly.
CLI test mode for PWM just gives 0s for everything
Replies
Guys, thanks again for your help. I got an RMA and it's going back to 3DR so they can check it out.
EDIT: I just read, and learned, that on that Rx the signal is on the bottom.
Maybe I'm missing something here, since I don't have that Tx/Rx but isn't the signal pin on the Rx the top pin??
In the top picture it looks like you are using the bottom pin. Again, I'm not sure if it's different on that Rx, but maybe not??
Hi David,
I am not too familiar with Spektrum equipment but judging from the above pictures I would say your problem lies in the way you have connected the reciever to the apm.
It appears you are only using one wire per channel?
Try using the proper 3 wired servo leads male to male such as these and you will find it will work there are 3 outputs - negative, positive and signal, with the signal wire usually being white or orange.
Make sure you plug them in the right orientation for it to work..
Ok now I've tried the Arduplane firmware, the one for helicopters, octas, and back to quad.
The PPM output still won't do anything when I move the radio. All bars stay grey in the quad setup. I have green values in the arduplane firmware but that's there by default because they don't move (see pics).
Below you can see the two PPM signals. The red is the output from the APM2 and the yellow is the output from the receiver (input to the APM2). The PWM signal from the receiver changes with radio inputs (pic on the right is throttle up), but no response from APM2, no matter what firmware is loaded or when I reset it.
Here's the radio calibration screen from the arduplane firmware loaded (green bars don't move at all):
Values:
And here's the one with the arducopter firmware (no green bars):
Values:
Anyone?
Looking around the board with a loupe I also found one of the chips has 2 shorted/soldered leads (shown by the arrow)...which might be correct, but since I don't know what the problem is I figure I'd ask. Also, the two "input" pads on the back are showing continuity which I'm also stating just in case it's not normal. Middle resistor or cap is missing from just under the reset button in case that's not normal either...
Check the image below
I've emailed tech support but still waiting on a response.