Search found 459 matches

by Carbo
Sat Feb 20, 2021 12:44 pm
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: New beta version of openXsensor (=openXvario)
Replies: 537
Views: 136083

Re: New beta version of openXsensor (=openXvario)

A4 and A5 (i2c bus) is OK for both. They are differentiated by the i2c adress.
by Carbo
Tue Feb 02, 2021 7:45 pm
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: openXsensor slimsize GPS Vario for DLG and F5J
Replies: 44
Views: 15832

Re: openXsensor slimsize GPS Vario for DLG and F5J

Hi Is there any chance to get the information what had to be changed to get it running with Telemetry Viewer? What's the different in S.port information/protocol between Standard Frsky and this version. Regards Chris Hi, here is a complete sketch, ready to flash. T1 and T2 are manipulated to simula...
by Carbo
Tue Feb 02, 2021 6:34 pm
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: New beta version of openXsensor (=openXvario)
Replies: 537
Views: 136083

Re: New beta version of openXsensor (=openXvario)

Airspeed is not foreseen in hub-protocol. It should be possible to send airspeed using other fields like T1. But it is not prepared. It is eventually much easier to flash D-RX with D16 firmware: https://www.rcgroups.com/forums/showthread.php?3391195-FrSky-D16-firmware-for-D8-receivers&perpage=20#pos...
by Carbo
Thu Dec 31, 2020 12:50 pm
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: OpenXSensor vario configuration
Replies: 25
Views: 1883

Re: OpenXSensor vario configuration

Your MS5611 seems to be OK since your VSpd (not compensated) is calm. Your MS4525 airspeed data seems also OK. Running the attached V4.0 firmware should result in a similar compensated VSpd with low noise (+/-0.1m/s). To crosscheck again I can flash the sketch you used in your test and report back. ...
by Carbo
Tue Dec 29, 2020 4:34 pm
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: OpenXSensor vario configuration
Replies: 25
Views: 1883

Re: OpenXSensor vario configuration

This is a logfile with V4 I've just made. SC is switching between not compensated (1) and compensated VSpd (-1). There is +/- 0.1m/s noise in compensated mode (when airspeed is about constant) and no noise in not compensated mode. Sensitivity was 60% and compensation 110% in this case. If you test w...
by Carbo
Mon Dec 28, 2020 7:00 pm
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: OpenXSensor vario configuration
Replies: 25
Views: 1883

Re: OpenXSensor vario configuration

You are right. I've crosschecked with the 2016 version and compensated VSpd is indeed not useable. Now I remember I was using this version for glider performance measurement only. Then I've flashed back to 4.0 and everything worked as foreseen. Seems the newer versions are missing some filtering for...
by Carbo
Thu Dec 24, 2020 2:58 pm
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: OpenXSensor vario configuration
Replies: 25
Views: 1883

Re: OpenXSensor vario configuration

Presumably you should test an older known working version now. Please find attached a 2016 oXs sketch which should work with your configuration out of the box. 2016 there was only one config file (config.h) but you will see a similar structure.
by Carbo
Thu Dec 24, 2020 12:22 pm
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: OpenXSensor vario configuration
Replies: 25
Views: 1883

Re: OpenXSensor vario configuration

With the sensitivity dialed down to 20, airspeed fixed at 38kts with a syringe (but still fluctuating, might indicate a problem with the sensor), compensation at 82%, vspeed jumping between -0,4 and +0,4 m/s Hmm, there is something wrong, airspeed and VSpd should be stable in your setup, even with ...
by Carbo
Thu Dec 24, 2020 10:08 am
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: OpenXSensor vario configuration
Replies: 25
Views: 1883

Re: OpenXSensor vario configuration

At rest, no airspeed, I get readings between zero and roughly 6. This is pretty normal. Variation decreases exponential with increasing airspeed. Imo it is better to simulate airspeed inhouse with a static pressure applied to the dynamic port of the MS4525. Vspeed should be nearly deadcalm inhouse ...
by Carbo
Wed Dec 23, 2020 1:59 pm
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: OpenXSensor vario configuration
Replies: 25
Views: 1883

Re: OpenXSensor vario configuration

It is actually not intended that way. #define VSPEED_SOURCE FIRST_BARO selects standard VSpeed from first physical baro sensor. MS5611 in your case. #define VSPEED_SOURCE AIRSPEED_COMPENSATED selects airspeed compensated VSpeed #define VSPEED_SOURCE PPM_SELECTION allows to switch between the two VSp...
by Carbo
Wed Dec 23, 2020 6:00 am
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: OpenXSensor vario configuration
Replies: 25
Views: 1883

Re: OpenXSensor vario configuration

This is strange. Airspeed data should not change at all if the vario data source is changed. Please upload your config files.
by Carbo
Tue Dec 22, 2020 11:47 am
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: OpenXSensor vario configuration
Replies: 25
Views: 1883

Re: OpenXSensor vario configuration

What I want to look into is sending out a telemetry value with the name "compensation" and send the exact value, so I can read it on my X10S radio directly. There are two different ways imo: Activate #define FILL_TEST_2_WITH_PPM_AIRSPEED_COMPENSATION and transmit TEST_2 in a T1/T2 field and change ...
by Carbo
Tue Dec 22, 2020 9:25 am
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: OpenXSensor vario configuration
Replies: 25
Views: 1883

Re: OpenXSensor vario configuration

oXs is able to send PWM (PPM) back in a telemetry field. T1 or T2 is a good choice. With a suitable offset and ratio OpenTX should show compensation % directly. On my side I was happy with the PWM value since I adjust compensation acoustically. But you are right, it is smarter to convert it in compe...
by Carbo
Mon Dec 21, 2020 8:23 pm
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: OpenXSensor vario configuration
Replies: 25
Views: 1883

Re: OpenXSensor vario configuration

Only these lines are needed for your purpose: #define AIRSPEED_RESET_AT_PPM 100 //send a pwm signal +100% to reset airspeed before start #define COMPENSATION_MIN_AT_PPM 60 #define COMPENSATION_MAX_AT_PPM 90 #define COMPENSATION_PPM_MIN 80 #define COMPENSATION_PPM_MAX 140 Compensation is adjusted wit...
by Carbo
Sun Nov 22, 2020 6:29 am
Forum: openTx
Topic: Glider crow brake in flight mode - tricky difficulties with camber offset
Replies: 2
Views: 384

Re: Glider crow brake in flight mode - tricky difficulties with camber offset

123jhe wrote:
Sat Nov 21, 2020 11:13 am
The expected behaviour would be: braking is starting from the camber position of the phase the glider was in before entering brake.
In order to avoid the rapid up and down, you can set the trigger point for the landing phase so that there is never an upward movement due to the switchover.
by Carbo
Tue Oct 27, 2020 1:03 pm
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: High(er) resolution current sensor
Replies: 7
Views: 2467

Re: High(er) resolution current sensor

Hi John Yes, third board is an Arduino pro mini 328 16MHz. It is also possible to use an Arduino Nano which has USB onboard with only a little weight and size penalty. Nano is preferable for beginners if size is negligible. If you are only looking for a 100A sensor without the need of 0.02A resoluti...
by Carbo
Wed Oct 14, 2020 8:10 am
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: RPM resolution?
Replies: 230
Views: 48158

Re: RPM resolution?

A 100pF ceramic cap connected to (D)8 and GND solved a similar issue for me. Interference was presumably caused by RX telemetry. OpenTX filtering should not be neccessary imo.
by Carbo
Sat Sep 12, 2020 8:07 am
Forum: General help (FrSky Taranis radio)
Topic: Frsky R8 PRO receiver AIN2 port not working?
Replies: 7
Views: 1266

Re: Frsky R8 PRO receiver AIN2 port not working?

There is an (useless) A2 voltage in telemetry, but FrSky RX8Rpro have no AIN2 port at all. Where did you connect FBVS-01?
by Carbo
Wed Jun 17, 2020 8:23 pm
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: two current sensors on one arduino
Replies: 4
Views: 1131

Re: two current sensors on one arduino

Indeed there is only one slot for current data. But a few for voltage. A workaround is to scale and transmit the voltage output of a 2nd current sensor and change unit and name in OpenTX later.
by Carbo
Wed May 20, 2020 4:31 am
Forum: openTx model setup
Topic: Using Vario Alt for rate (ascend/descend per minute) announcements
Replies: 7
Views: 1996

Re: Using Vario Alt for rate (ascend/descend per minute) announcements

I consider the following approach: - Setup a calculated sensor from the (Alt) telemetry value. A calculated value (called "Rate") of type "distance" in meters. - Setup a timer, that triggers every minute (for one second). - Setup a function on the start of that timer edge to playvalue "Rate" and im...
by Carbo
Tue Apr 07, 2020 10:16 am
Forum: FRSky Horus radio
Topic: Mainboard defect in S-Port update
Replies: 4
Views: 3829

Re: Mainboard defect in S-Port update

Don't worry. It is nearly impossible to damage a iXJT in this context.
by Carbo
Mon Feb 10, 2020 10:28 am
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: openXsensor slimsize GPS Vario for DLG and F5J
Replies: 44
Views: 15832

Re: openXsensor slimsize GPS Vario for DLG and F5J

So, am I right that to have a GPS rate at 5 or 10 , I have to use U-Center to modify BN-220 and adapt rate in openXsensor sketch? No, it's easier. You can simply change this line in oXs_config_advanced.h (see 9 - GPS): #define GPS_REFRESH_RATE 5 // rate at which GPS sent new data; select between 1,...
by Carbo
Mon Feb 10, 2020 1:27 am
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: openXsensor slimsize GPS Vario for DLG and F5J
Replies: 44
Views: 15832

Re: openXsensor slimsize GPS Vario for DLG and F5J

In sketches from this thread MS5611 is enabled by default. In this case oXs will not find a GPS until the baro was found during startup. If you do not connect a MS5611 then this line in oXs_config_basic.h: #define FIRST_BARO_SENSOR_USE MS5611 // select between NO_BARO , MS5611, GY86 , BMP085 , BMP18...
by Carbo
Sun Feb 02, 2020 5:36 pm
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: GPS only - troubles with latest version
Replies: 7
Views: 2412

Re: GPS only - troubles with latest version

255 is perfect, since it is 2.55 * 100
The ratio for factor 1 is:

Precision 0 --> 255 (Temp)
Precision 1 --> 25.5 (e.g. Current)
Precision 2 --> 2.55 (e.g. Acc)

Took me some years to find out :)
by Carbo
Wed Jan 29, 2020 4:06 pm
Forum: erskyTx (was ersky9x)
Topic: Frsky updates
Replies: 198
Views: 38817

Re: Frsky updates

I want to add my last personal episode with FrSky. I'm testing my gear intensively, because I can not afford any mistakes where I fly. I've flashed v2 to have a first impression inhouse. I know what RSSI and frame loss I can expect. My first thought was, wow what a progress in link quality. At the s...
by Carbo
Wed Jan 29, 2020 9:40 am
Forum: erskyTx (was ersky9x)
Topic: Frsky updates
Replies: 198
Views: 38817

Re: Frsky updates

As the oldest looking in this forum I want to say, that a lot of people are very grateful, for the work some smart people are doing for the community. Without people like the OpenTX devs, Mike, mstrens, Pascal I would for sure not fly RC anymore. It is a lot of fun with you all! Keep going please.
by Carbo
Tue Jan 28, 2020 9:56 am
Forum: erskyTx (was ersky9x)
Topic: Frsky updates
Replies: 198
Views: 38817

Re: Frsky updates

midelic wrote:
Tue Jan 28, 2020 8:49 am
Yes I continued,and I will continue .ABout V2 if will be cracked probably will be added as 4-th protocol on my rx.
I will check merciless, if you also manipulate lost frames with your V2 ;) :D

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