July 31, 2018 at 8:46 am #12890
I purchased your telemetry cable for PixHack and I cannot get the telemetry to link up. It is stuck on the ‘Waiting for your flight controller’.
Looking at the pinouts, I believe there may be a problem. You have wires coming from pins 1,2 & 5,6.
The pinout for the USART ports on the PixHack are: Gnd, +5v, Rx, Tx, CTS, RTS. So the Tx and Rx are not connected through the cable.July 31, 2018 at 10:03 am #12891
Yes, the cable you ordered is for Pixhack v3. You will need to change the order of the pins in the housing to match the Pixhack v5 order, which is the one you mentioned.
Pixhack v3 -> Pixhack v5
TX (1, red), -> (4)
RX (2), -> (3)
VCC (5), -> (2)
GND (6) -> (1)
CTJuly 31, 2018 at 11:22 am #12892
Thank you – it is still not working – Any possibility the wrong pinout fried the boardJuly 31, 2018 at 11:51 am #12893
It’s possible. Let’s check a few things first. Please try to perform a discovery in OpenTX. See if GPS appears (with Flight Controller on first, and a GPS connected to it).
Double-check that SERIALX_PROTOCOL is set to 10, where X is the port number your cable is attached and no other ports set to 4 or 10.July 31, 2018 at 1:20 pm #12894
It fried 2 of my USARTS on my brand new V5 flight controller!July 31, 2018 at 1:55 pm #12895September 13, 2018 at 3:51 pm #13086
I am getting only about 7 telemetry parameters 2 of which I believe is from the FLVSS – Cels, RSSI, RxBt, VFAS, Alt, VSpd & GPS. Every few seconds, I get a sensor lost message followed by an addition of a GPS entry up to 25 entries with 20 duplicate GPS entries with different Instance IDs.
Any help would be appreciated…September 13, 2018 at 4:22 pm #13088
Looks like this issue, that we were never given an opportunity to really resolve: https://github.com/ArduPilot/ardupilot/issues/4744
The symptoms are typical of when the flight controller takes too long to respond to the polling requests from the FrSky receiver, resulting in responses to poll requests others than the one originally intended, which creates the duplicates you mentioned. That, combined with the sensor lost messages really show that the responses from the flight controller are significantly delayed. There are some details on how you may be able to resolve that in the troubleshooting section of the FlightDeck manual, including addressing the most common cause with is the flight controller SD card.
If not already done, you may also want to update to the latest version of ArduPilot and possibly try the ChibiOS version which should be better at CPU and memory management.September 13, 2018 at 4:50 pm #13090
I am running the latest RC version of Ardupilot/ChiBios and running on a PixHack V5 with a FMU v5.September 18, 2018 at 10:19 am #13100
I just received my 2 brand new Telemetry cables and unfortunately am still having the same problem. I only get 8 telemetry sensors. Any idea what the problem could be or how to approach – Thank you.September 18, 2018 at 12:33 pm #13102
It is the expected result to get these additional discovered sensors once everything is connected and configured: VFAS, Alt, VSpd & GPS
If you’re not experiencing intermittent connectivity issues with the telemetry but you’re still stuck on the splash screen, consider updating OpenTX to v2.2.1 or later. You can also send screenshots or a video of the problem to [email protected] so that we can better assist you.September 18, 2018 at 1:03 pm #13103
The telemetry screen comes up but, I used to get 21 sensors. Now, I only get 8. FrySky PassThru provides many more than a handful of sensors?
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