openrcforums

Hi
I did get 20 of the original boards made but never made the dlg version because I didn't have the need.
Are you interested in making some?

So after a bit of doing here is a new revision
MS5611 is turned 90 deg
I don't have any space left for mounting holes sry

Added two additional ADC pads
All pads are now on the same side of PCB as 1mm test pads
PCB is even smaller 22.6x13.5mm

Here's another update with the decoupling coil and pads for TWI sensors
I didn't implement 4 pads for NiMh battery because i think it's useless to monitor individual cells.
No NiMh battery Pack has a balancer connector AFAIK

Hi I updated the schematic and board pinout on Sport and batt conector are now the same and there are jumpers for 1S and 2S configuration Concerning the recommendation from Tempo I'm not quite sure So you want a 10uH and 100nF from Vcc to AVCC right? Also all the pinheaders should be replaced with t...

Found it myself
It was exactly because of the issue above
changed line 558 in oXs_out_frsky.cpp to
SendValue( FRSKY_USERDATA_VFAS_NEW , (int16_t) (voltageData->mVolt[VFAS_SOURCE - VOLT_1 ].value/10.)+2000);
Now it works nicely

Hi
I just tested one of the sensors on D-Series receiver.
It works but the VFAS voltage is displayed wrong
Instead of 22.65V it display 206.72V
I think this has something to do with:
https://github.com/opentx/opentx/issues/2607

Ideas ?

Hi
I just commented out the //#define DEBUGASERIAL
and enabled the voltage sensing pins again in the oXs_config.h
tried it and it works perfectly
Thanx for adaptation and support

Hi
The new version works like a charm on my board with RC oscillator
Attached I have the logic trace with S.Port and A0 traced.
Of course no cell voltage measurement at this point

So after a bit of waiting here is the dlg version of my board
Have a look at the pdf for details
Gerber files are uploaded as well.
Board dimensions are 13,5x25mm
How's this for a small board?

Features vario and 2S lipo measurement

Did another capture where one data packet came through
Ids are not changing anymore
But the date is coming very seldomly
Timing seems ok but I guess the openXsensor doesn't properly see the requests and therfore doesn't answer regularly

Hi
Sure enough I have a salea logic
Attached is the captured file
As you can see the sensor is not answering at all (which is what I expected)

Hi I tried a basic configuration with old and new code on my pcb and the old code works while the new code (new sport branch) doesn't however on the 16MHz arduino board both versions work just fine. Now I don't have a 8MHz Arduino board with the resonator populated so I can't tell whether the 8MHz c...

Hi
In the meantime I took an arduino mini pro board running at 16MHz
Here the code works fine
Can it be that the new code require 16MHz clock frequency?

Or should it also work with a more stable 8mhz clock ?

Hi I just flashed the new version and now I'm getting some telemetry data. But it is irregular and the IDs even for the same information keep changing. I was wondering maybe this has something to do with the fact that I'm not using an external oscillator on my board but rather the internal RC oscill...

Hi
just tested the new code
on a board with soldered ms5611 chip.
Doesn't work either. No telemetry reaction whatsoever
Attached is my config again

Thanx
If you need me to test anything please let me know
Also I can try with a board that also has pressure sensor onboard

Hi I just tested the new openXsensor new_sport version
and it doesn't send any telemetry data
I've attched my config file
Did I overlook something?

Understood
I will check which variables have to be changed to make the autodetect.
Is there anywhere in the code that is good to implement the autodetection function.
In which .cpp file ?

Hi I just tested the change I also changed the CELLS_5_6 field to CELLS_FIRST_ID Tested with 3s pack works perfectly now Have to get a 6s pack to check for the rest but I guess this is working fine now. Thanks for the fast help, it would have taken me some time to figure that one out. Also I checked...

Hi Thx for the answer My measurements were done with a 3S lipo connected to cell1,cell2,cell3 The reported voltages in the AccX,AccY and AccZ field look fine (3917,7815,11718) Which I guess translate to 3.917V, 7.815V and 11.718V Which is correct. However the voltages reported in the Cell field seem...

Hi all Yesterday I received the pcbs and populated them I flashed openXsensor v4 and they're running Tested on a X4R receiver Only problem I have is that the cell Voltages display fine if I send them as Acc or A3 A4 values but not if I send them as Cells Especially anything beyond two cells seems do...

Yeah that was the idea Now I chatted with the creator of the diy rx software and he tells me that the telemetry protocol is not fully reversed yet. So I will send him one of the above pcbs so he has a telemetry sensor with which he can check the protocol. He says there is enough space left in the at...

Hi
I was thinking about integration with the receiver
Since the FrSky protocol was reverse engineered
http://www.rcgroups.com/forums/showthread.php?t=2124647
I was thinking about integrating both for minimal space.
Not sure how well this would work though

Hi
what would be on the wishlist for a DLG version?

In the meantime I've ordered PCBs for my version to check out if everything works
I'm still unsusre about the resonator

Hi based on your comments I added a resonator (not sure if the internal RC-oscillator wouldn't be enough but footprint is there) and four testpads for pwm serial/other sensors on the top portion attached is another 3d shot and the gerber files I will order a small series of pcbs (10 at the moment) a...

Hello guys
I went ahead and designed a custom pcb for openXsensor
it includes the atmel mcu, the ms5611 pressure sensor and the voltage dividers for lipo voltage monitoring
Have a look ant tell me what you think and if I have overlooked anything.
Design is in Altium and I will upload gerber files