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Flysky Vario Support
- hexfet
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- ballbear
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First results:
After start it displays Minus 104m, after 20 minutes it stabilized on Plus 10-14m
I move the sensor one level in the house down, the value started to rise, after five minutes it was over Plus 470 m ....
Going back upstairs the value starts to decrease, it even falls bellow zero, actually after 15 minutes it is on Minus 170m ...
Till now it was tested with only one sensor.
Now I will connect the Voltage sensor and we will se, what happens ...
regards
Pavel
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- ballbear
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Looks like the voltage sensor doesn´t appear in Telemetry monitor at all...
When the altitude sensor was alone and after a time was stable on 250m, when I connect the voltage sensor, the value starts to decrease and later it rises again.
I will try to go one or two steps back, to see, if the voltage sensor wil appear in the telemetry monitor.
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- ballbear
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it looks like in both Test builds the voltage sensor dissapears ...
This is a pitty, battery voltage in model is important to know ...
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- ballbear
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In the 9e9beec NightyBuild the Voltage sensor works well.
In Telemetry monitor:
Row 1 60d 5.08V 11.6V
Row 2
Row š
Row 4
Row 5 11.6V
Row 6
Row 7
Row 8 100
Row 9
The value in Row 8 decreases when moving away from receiver - perhaps percentage of signal strenght.
But the Altitude sensor is not recognized.
If the altitude sensor is connected, than :
Row 1 60d 5.08V
Row 2 22C
Row 6 plus or minus value Altitude
Row 7
Row 8 100
Row 9
Thats all at this moment.
Regards
Pavel
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- ballbear
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The voltage 11.6V in row 6 is in column Bat
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- hexfet
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The code in the 9e9beec build didn't handle the telemetry type sent by the altitude sensor so it might be interfering with the voltage data. The code to handle the newer sensors is different so need to figure out first if it handles the voltage okay. I make a new test build ( 77bfa71 ). Please try this with just the voltage sensor, and then add the altitude sensor.
What are the model numbers of the sensors you have? Want to be sure I understand what data to expect.
The value in row 8 is a link quality indicator. A description of all the rows is in the manual.
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- ballbear
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I will make the test at noon ...
The sensors are FS-CVT-01 Voltage and FS-CAT01 Altitude for AFHDS 2A.
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- ballbear
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The last version 77bfa71 recognises only the Voltage sensor FS-CVT-01 .
The Altitude sensor FS-CAT-01 is not recognised at all .
I connected first the Voltage sensor, it works OK.
Then I add the Altitude sensor, and nothing happend.
So I switch all off, and started again with the Altitude sensor only.
Notting happend, no sensor found in the Telemetry monitor.
I add the Voltage sensor and the traction battery voltage appears in row 2 column Bat.
Also are missing values for RSSI in row 1 and signal strenght in row 8, which were available in the original NightyBuilds. Only the Voltage VCC comming to receiver from BEC is visualised in row 1 column Bat.
Hope it helps
regards Pavel
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- hexfet
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New test build is available ( 641a422 ). I found some old test data that includes the same sensors that you have and it worked correctly in the emulator. If this doesn't work with both sensors installed, please try with each sensor separately and report what happens. This build includes a more complicated altitude calculation so interested to see if the altitude reports different from before.
The Flysky telemetry is reported in the Frsky telemetry format - the table is here . The altitude is reported AGL, with ground level set to the first altitude reading received.
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- ballbear
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The readings on altitude are not stabile, and still not OK.
I will later make tests with only Altitude sensor alone.
BTW - what about the File system - it is necessary to exchange all files when going to the next TestBuild version?
Looks like all files are the same and they differ only with the datum?
Regards
Pavel
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- hexfet
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I don't understand why the altitude sensor is not working. It works fine with the limited test data I have. Do you have a 3.3v FTDI adapter to capture some telemetry data? I can make a test build that will log the data out through the trainer port.
When the altitude sensor is plugged in is the temperature reported correctly? Is it accurate?
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- ballbear
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unfortunatelly I don´t have such adapter ...
Here are some results from tests I made evenings
First test is done with only the Altitude sensor
18:50 Start reading plus 101m
:55 minus 48m
19:05 plus 13,5m very slowly rising
moving upstairs 3m
value falling down minus 145m
2 minutes later value minus 138m
moving downstairs 3m
value rising up to minus 45m
2 minutes later value plus 5m 2 minutes later value plus 40m slowly rising up to 70m, than slowly falling down ...
19:20 43,5m
moving upstair 3m value rises up to 96m
moving downstairs 3m value starts do decrease, but immediatelly rises to 111m and then starts to slowly decrease to 27m at 19:30
STOP the test.
19:31 new start - mean disconnected from battery, switch off the Tx and start everything again.
Altitude reading was 131m Temperature 18 degrees
Value is falling down, in seven minutes is at Minus 20m and started slowly to rise ... 10 minutes later was at 44,5-45 m quite stable.
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- ballbear
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19:50 start, reading is minus 100m 19 degrees
value is rising 19:51 minus 57m, :52 minus 17m :53 plus 15m 20:00 plus 99m 20:23 quite stable 102m 20:27 102m
20:29 moving upstairs 3m
reading 200m 20 degrees 20:30 127m 20:31 55m 20:32 10,5m 20:33 minus 17m ...... 20:49 minus 69m
20:50 moving downstairs 3m temp 19 degrees
reading rises up plus 48m 20:52 plus 59m 20:53 73m 20:55 101m 20:57 112m 21:00 plus 114m 21:30 plus 113m stabilised
If the sensor is moved UP, the altitude goes down and vice versa ,,,,
I have one doubt - maybe it would be better to make the test outside the house - could not be in the house some influence from doors aetc ?
Regards
Pavel
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- ballbear
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I am crazy ....
Pavel
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- ballbear
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Somtimes by moving the sensor the altitude value changes in opposite direction ,,,
but not in every case .... Today it happend three times it moves in opposite direction, but in last test, one and half hour later, the altitude reading decreases by moving the sensor down .... but sensor moves 4m and the value vent from 122m to minus four hundred meters and than i switched it off ...
It is terrible ...
Sometimes is visible, that the altitude value is not sent to the main page, it frozes , sometimes it starts again, sometimes is necessary switch to telemetry monitor and back ...
I hope, you didn´t loose the courage yet

Regards Pavel
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- ballbear
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but later it corrupted the file system and it was necessary to format the drive and new copy the file system ...
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- ballbear
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FTDI adapter
pajenicko.cz/prevodnik-ftdi-3-dot-3v5v-usb-na-ttl-uart
dratek.cz/arduino/1747-breakout-board-us...232rl-3.3v-5.5v.html
Oooooops!
I remember, that I have something !
Have a look on the photos, I have two adapters, one is CP2102 ( the red one ) and the second USB to TTL D-SUN
Can we use it?
Regards Pavel What we will do with this adapter? How it would be connected, what next would be necessary for capturing the data ?
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