"Well, I'll be,..   It works..   Turns out it doesn't like the RDF900 modem..  The modem is good, if I unplug the receiver it works, they just won't work together..  that is very odd..  I'm able to connect to the RDF900 from mission planner with…"

"Been doing this stuff for years and years..   
Using a dragonlink copter and a dragonlink micro..  The red led flashing means it has power but no PPM signal from the controller.

On the dragonlink copter version, the pins are clearly marked GND, V…"

"I did try that but didn't work..  On the APM Pro I had to jumper 2 pins.. do you have to do this on the Pix Mini?
I tried a couple recivers, on both, the red led flashes then goes out..  Put it back into my Naza copter and it worked..  so I know its…"

"Has anyone tried the Pix Mini yet?  I have mine but comes with zero documentation...  Can't seem to figure out hwo to connect my PPM receiver..  ugh

Anyone out here know?"

"Solved the issue of the one motor not spinning up as fast..  I tried EVERYTHING, just about every firmware old, new and beta I could find with no luck..   I installed a regular APM 2.6 on my frame and everything worked fine.. ARGH!  

Then I save…"

"Think I figured it out..  Still a bad APM though..

When I lift the APM while in stabilize mode and wobble it around, nothing happens..  Though the artificial horizon in MP does move..

I put in a regular APM 2.6 and when moved around all the motors…"

"I too am having this issue with the Mini APM Pro on Motor 3!  All motors spin at the same speed when armed, but motor #3 only starts spinning up at 1/4 throttle..  I moved the PWM wires to another prop connection and it ran fine, but any motor…"

"Well..  odd.. but I guess it makes sense..  I had to switch the RX & TX on the modem..  to TX is going to RX on the APM and RX going to TX on the APM..  it works!"

"Took to case apart and seen on the PCB that I do have the correct pin/s connected..

Reading from left to right on the top row of the APM Pro:
TX, RX, 5V, GND

On my RFD900 (jumper on 4 & 6)
Pin 1: GRD
Pin 3: <BLANK>
Pin 5: 5V
Pin 7: RX
Pin 9: TX
I…"

"Has anyone gotten a telemetry radio connected?  I have an RFD900, connected pin's: GND, VCC, RX, TX to the top 4 pin's under the telemetry label but won't connect.  can't find where to connect the CTS or RTS pins.."

"Turned out I was looking at the wrong one..  I still have this issue..
Since I moved the cables around and any motor plugged into the #3 Prop on APM doesn't spin up with the other motors at low throttle.. Is there a setting I should be looking at?…"

"Sorry, swapped PWN wires..  

I noticed one of the wires were frayed, looks like I might have touch it with the soldering iron..  Going to fix that and see if the issue goes away.."

"You don't need that version any more.. the latest MP 1.3.5 has Survey Grid built in..
I am working on a LUA script for the APM which will extend, trigger and retract the camera lens..  You will have to put in some DO_SET_SERVO's to send the proper…"

"I'm thinking the Pixhawk only reads altitude in ABS mode..  I ran into the same issues..  My APM is always fine, I set 100 meters in the flight plan and it flys 100 meters up from where I turned it on..   The pixhawk gets altitude from the GPS which…"