Devo 12S + ar7200bx + tm1100 no values...

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09 May 2018 15:19 - 09 May 2018 15:24 #69138 by sv650s
Hi,
I use an ar7200bx (dsmx) + sat since 2 years on my trex 550e v2, with devo 12S under deviationtx Nightly builds and all is good.
But today i would like to use a TM1100 telemetry modul for having Vbatt of main Lipo and Vbatt for my lipo of receiver.

So, i have plug AR72100bx data to TM1100 data, i make a new bind procedure for having AR7200 + sat + TM1100.
Bind seems to be ok, my helicopter move correctly, but on TM1100 the led stay off after binding.
I have activated telemetry on my radio under dsmx protocol, and after i have add 2 boxes on my radio , one for having Vbatt and the other for T°, but nothing on my screen , the values stay at 0....

What is the problem ? What i have made bad ?
This work for someone her ?

Thanks for your help
Last edit: 09 May 2018 15:24 by sv650s.

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09 May 2018 16:16 - 09 May 2018 16:19 #69140 by vlad_vy
Replied by vlad_vy on topic Devo 12S + ar7200bx + tm1100 no values...
Try bind with telemetry On or number of channels = 8 or more and telemetry On.
Last edit: 09 May 2018 16:19 by vlad_vy.

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09 May 2018 16:24 #69141 by sv650s
Replied by sv650s on topic Devo 12S + ar7200bx + tm1100 no values...
If i bind with telemetry on it seems to not answer correctly, there are strange movements.
I will try to bind with 8 channels. I'm actually with 7 channels.
How much channels max i can try ?

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09 May 2018 17:10 - 09 May 2018 17:13 #69143 by vlad_vy
Replied by vlad_vy on topic Devo 12S + ar7200bx + tm1100 no values...
You can try with any number of channels up to 12, since ar7200bx support 11ms packet rate. With any number of channels >7 packet rate will be 11ms.
Last edit: 09 May 2018 17:13 by vlad_vy.

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09 May 2018 22:38 #69149 by sv650s
Replied by sv650s on topic Devo 12S + ar7200bx + tm1100 no values...
What change if i declare more 7 channels ? Each kind of telemetry is considered as a channel ?

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10 May 2018 03:48 #69152 by vlad_vy
Replied by vlad_vy on topic Devo 12S + ar7200bx + tm1100 no values...
No, transmitter will transmit two packets 11ms + 11ms = 22ms. The telemetry packet is transmitted back to transmitter after each packet.

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10 May 2018 09:58 - 10 May 2018 09:58 #69155 by sv650s
Replied by sv650s on topic Devo 12S + ar7200bx + tm1100 no values...
I have made many tests with 12, 11, 10 and 9 channels, and and it works now but only when binding with 9 channels.
So, my problem is solved, thank you very much for your help.
Last edit: 10 May 2018 09:58 by sv650s.

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10 May 2018 10:03 #69156 by vlad_vy
Replied by vlad_vy on topic Devo 12S + ar7200bx + tm1100 no values...
From manual:

Channels:
7 (8 channels are available, however, Channel 5 is only used as an internal gain channel for the tail gyro).

So, it's 8 channel receiver, but channel 5 can't be used.

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10 May 2018 14:59 #69162 by sv650s
Replied by sv650s on topic Devo 12S + ar7200bx + tm1100 no values...
It is possible to "calibrate" voltage ?
Because i have 23.3v on a lipo 6S, but the TM1100 read only 22.95v...
So i would like to make it more precise. Maybe some modifications to do as a factor error to set in my devo 12S ?
Thanks for your help

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10 May 2018 15:16 #69163 by vlad_vy
Replied by vlad_vy on topic Devo 12S + ar7200bx + tm1100 no values...
Battery voltage is digital value from TM1100, so it's TM1100 calibration problem.

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