"Rolf I have a couple of questions about this reply.  First I am running an apm 2.6 with the teensy 3.1 board hooked to my Frysky 8XR receiver using my Taranis Transmitter.  My telemetry is working fine but my battery voltage (CEL and CELS) is…"

"Joy,  Disregard the last post.  My APM 2.6 board is now out putting Telemetry once I hooked the battery up to the power module and connected to the APM.

Now my only problem is "Batt" is showing 7.9 volts and is static.  "Cels" is showing "0" and so…"

"I now have a APM 2.6 board that I am going to try the Teensy 3.1 on.  I have a couple of questions.
1) Will Telemetry to the Taranis work when I am plugged into USB or do I need to power up with battery?  Currently I have everything wired up to USB…"

"Hello Glenn,
I will follow your instructions.  When I pull that connection (teensy TX -> APM rx) (using pins) it doesn't seem to make any difference.  The light still flashes quickly.  Maybe I do have a bad connection.

This APM 2.5 board in the…"

"USB power doesn't work unless I connect to Mission Planner and USB.  Then All is well.  "

"I am using pins 9 and 10.  When hooked up to the battery the LED blinks very fast as you say, but the receiver never sends telemetry data.

When hooked up to the USB and Mission Planner connected the LED blinks like it should...very fast, same as…"

"No joy in Telemetry town.

I only get telemetry when I am connected by USB to Mission Planner and Mavlink is connected.  I have tried all iterations on the pin connections to the APM.  Mission Planner must send the "heartbeat".  The only wiring I…"

"I do have TX, RX and GND connected from APM to Teensy.  I am going to try to use just the TX and GND pin or the RX and GND pin.  Maybe Thats why I only get things working when I am connected to mission planner.  

Any way, I read your posts and I…"

"Thank you Roger for your reply.
I actually have two Teensy 3.1 boards   The trace is cut on one and not on the other.  They both demonstrate the same symptoms, only working when I am plugged into the usb port on the computer and Mission planner is…"

"Please, any ideas on my post above with the strange telemetry behavior.  Could it be a voltage issue?"

"I am having an issue with my Teensy 3.1 board and telemetry to my Taranis.  I am using Teensy 3.1 on my Walkera QR X350 PRO which uses an APM board.
1) When I power up the quad with the battery I get no Telemetry.
2) When I power up my quad using a…"