According to the schematic of the ver 1.3 and up PCTx, the output of the PIC MCU is isolated from the input to the RC transmitter trainer port by a NPN transistor that acts as a buffer between the MCU and the trainer input. It turns out that I actually have a ver 1.3 PCTx that has the transistor buffer and that is why it will work with the Spektrum RC transmitters. I think that I traded Endurance RC my original ver 1.2 for the ver 1.3. I also have one of the ADCs that Endurance RC sells and it works great.
Silly question: Have you made sure that your RC transmitter is properly bound to the RC receiver that you are using and that you can use the transmitter to control servos attached to the accompanying receiver?
The Endurance RC ADC is an analog to digital converter board that allows you to digitize analog voltages and send them to your PC over a USB connection.
Ok, Thanks for the explanation.
I bought endurance PCTx, the high resolution one. I downloaded the sample application software for it from http://www.endurance-rc.com/media/9ch_high_res.exe and tried to control the motors on the arducopter. Unfotunately, nothing seems to happen. The sliders on the application interface just slide with out any consequence. I have the mono PCTx, plugged into the trainer post at the back of my DX6i transmitter and held on the trainer button with out powering on the transmitter.
Is there anything I am missing? doesn't the sample application software work with out any modification just by downloading and running? I need your advice or recommendations. thanks.
What receiver are you using?
I believe that the DX6i does not support the high resolution (11ms) timing required by the high resolution PCTx. I believe that you will have to use the DX8 which can accomodate the 11ms pulses.
Just a thought.