Search found 1397 matches

by mstrens
Mon Jul 06, 2020 9:06 am
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: Missing Vspd
Replies: 9
Views: 419

Re: Missing Vspd

quadrifoglio wrote:
Mon Jul 06, 2020 8:48 am
i have #define VSPEED_SOURCE FIRST_BARO
This seems OK
by mstrens
Mon Jul 06, 2020 8:40 am
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: Missing Vspd
Replies: 9
Views: 419

Re: Missing Vspd

In the config file for oXs, are you sure you have defined in a correct way how the Vspeed must be generated?
There is a parameter that allow to select between several options (first sensor, compensated, ...)
by mstrens
Mon Jun 08, 2020 5:23 pm
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: New beta version of openXsensor (=openXvario)
Replies: 523
Views: 92858

Re: New beta version of openXsensor (=openXvario)

Indeed the code that is Jeti protocol specific in the 2 files that you said. I have no Jeti hardware; so I can't make tests. The code I used for Jeti was based on some code that I found on internet a few years ago. Most users that I know that uses oXs with Jeti connect directly oXs to the receiver a...
by mstrens
Mon Jun 08, 2020 5:04 am
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: New beta version of openXsensor (=openXvario)
Replies: 523
Views: 92858

Re: New beta version of openXsensor (=openXvario)

When you try the vario, did you also connected a baro sensor (MS5611, BMP...) to the arduino. Compiling declaring a baro in the config but without having a baro sensor connected just blocks the arduino because it is waiting for data on the i2c bus. This is not the case for the flow sensor because it...
by mstrens
Thu Jun 04, 2020 10:03 am
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: First Jeti Sensor was a bust
Replies: 15
Views: 1452

Re: First Jeti Sensor was a bust

I think that there are 2 jeti protocols http://www.jetimodel.com/en/Telemetry-Protocol/JETI-Telemetry-Communication-Protocol/ oXs uses the first one that works at 9600 bauds and allows the sensor to send some data only once every 20 msec Perhaps that Jeti sensor uses the second protocol that works a...
by mstrens
Wed Jun 03, 2020 5:15 pm
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: First Jeti Sensor was a bust
Replies: 15
Views: 1452

Re: First Jeti Sensor was a bust

GPS deliver a new position only 10X per second (max) (défault in oXs is even 5 X per second but can be set on 10X in config file) Further on GPS set of data requires to transmit more data than a vario. FYI, oXs vario can calculate a new Vspeed 50 X per sec. Still the number of different datas being ...
by mstrens
Tue May 26, 2020 5:52 pm
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: Upload from Github: Python trouble
Replies: 6
Views: 337

Re: Upload from Github: Python trouble

It is strange.
I just made a download (zip) and I could make the extract without error message.
I am also using windows 10.
by mstrens
Sun May 24, 2020 8:53 am
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: New speed sensor: SDP3x
Replies: 13
Views: 1680

Re: New speed sensor: SDP3x

It seems that the branch sdp3x is OK. So, I just merged the branch sdp3x into the branch master. Therefore I also deleted the branch sdp3x. The new branch master contains also some changes made by Mike in order to support Sport protocol with his own firmware for D receiver (using then another pin fo...
by mstrens
Fri May 15, 2020 4:27 pm
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: Airspeed sensor N2 Indusries
Replies: 6
Views: 400

Re: Airspeed sensor N2 Indusries

If you prefer, you can send me private messages in French (it is my mother langage). I expect that the AVR328P has some internal fuses that can be activated in order to protect it. As alyernative, you can a new arduino pro mini (at about 2 €) and build an aispeed sensor with oXs reusing the 4525D se...
by mstrens
Wed May 06, 2020 7:28 pm
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: New beta version of openXsensor (=openXvario)
Replies: 523
Views: 92858

Re: New beta version of openXsensor (=openXvario)

OK, I will try it and will report the result... When You will do next OXS upgrade, is it big job to modify the communication to use 16-bit array instead of 8-bit? It is not a big job but I did it in this way in order to save space in memory? Currently it is already probably not possible to activate...
by mstrens
Wed May 06, 2020 11:19 am
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: New beta version of openXsensor (=openXvario)
Replies: 523
Views: 92858

Re: New beta version of openXsensor (=openXvario)

The Tx will recongnise as A3 an message having an ID between 0x0900 and 0x090f For A4 , it will be between 0X910 and 0X91f The #define ... lines are just for documentation. So if you change them, it has no impact. The program uses the code from line const uint8_t fieldId[22] = { 0x10 , 0x11 , 0x30 ,...
by mstrens
Wed May 06, 2020 7:29 am
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: current sensor
Replies: 8
Views: 988

Re: current sensor

I presume you have read this (extract of oXs_config_description.h) * 6.5 - Current sensor parameters ************************************************************************************** * It is possible to measure a current (and current consumption) if a current sensor is connected. * Connecting a...
by mstrens
Wed May 06, 2020 7:11 am
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: New beta version of openXsensor (=openXvario)
Replies: 523
Views: 92858

Re: New beta version of openXsensor (=openXvario)

All ID's from FrSky are defined in file oXs_out_frsky.h e.g. #define A3_FIRST_ID 0x0900 #define A3_LAST_ID 0x090f #define A4_FIRST_ID 0x0910 #define A4_LAST_ID 0x091f Still I fo not directly use those "define". I use an array in oXs_out_frsky.cpp: const uint8_t fieldId[22] = { 0x10 , 0x11 , 0x30 , 0...
by mstrens
Sun May 03, 2020 7:16 am
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: New beta version of openXsensor (=openXvario)
Replies: 523
Views: 92858

Re: New beta version of openXsensor (=openXvario)

I have the changes tested to use PD7 as the SPort signal, using the analog comparator as the input detector. What is the best/easiest way to get these added? Mike Mike, I presume this change is mainly (only) in oXs_out_frsky.cpp. You can send me the file(s) that you modified and I will integrate th...
by mstrens
Mon Apr 27, 2020 6:27 pm
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: OpenXSensor HoTT Temperature
Replies: 27
Views: 4099

Re: OpenXSensor HoTT Temperature

I changed the resistor to a 10k and i updated arduino config accordingly, but i stiil need to use an offset in opentx of +46.0. Using another thermometer the readings seems to be almost the same. The change in temperature is very quick compared to the digital thermometer i use as comparison. All se...
by mstrens
Mon Apr 27, 2020 12:09 pm
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: OpenXSensor HoTT Temperature
Replies: 27
Views: 4099

Re: OpenXSensor HoTT Temperature

There is probably a bad soldering somewhere.
If you make the folowing connection
5V <-- 100K resistor --> A0 <-- Probe --> Gnd,

The voltage on A0 should be 5V * (Probe resistance ) / (Probe resistance + 100K)
So at 18.5 °c it should be 5V * 2.2 /3.2 = about 3.8V
by mstrens
Mon Apr 27, 2020 11:22 am
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: OpenXSensor HoTT Temperature
Replies: 27
Views: 4099

Re: OpenXSensor HoTT Temperature

Do you have an Ohmmeter?
If yes, then mesures the resistance of the probe when it is not connected.
I would expect that at 25°C, the resistance should be about 100K.
Do you have the reference (or a link to the site where you purchase it) of your probe?
by mstrens
Sat Apr 25, 2020 6:06 pm
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: MPVX7002 air speed sensor
Replies: 3
Views: 381

Re: MPVX7002 air speed sensor

Wiring between ADS1115 and MVS7002 is not as expected in the oXs_config_documentation.h file. Did you found some other documentation? Perhaps the oXs_config_documentation.h has to be updated. Otherwise, remove the 2X10k, the 100K and the capacitor. Connect the output of MVS7002 (3rd pin on connector...
by mstrens
Sat Apr 25, 2020 7:59 am
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: No Vario function ...
Replies: 3
Views: 378

Re: No Vario function ...

your config files seems OK (when using both sensors). I do not see the error. The I2C address are OK (the adr defined in H file is not used; it seems overwritten by one in cpp file. I am not sure the combination IMU and BMP has been tested. Normally the combination IMU and MS5611 works. I suggest th...
by mstrens
Fri Apr 24, 2020 4:02 pm
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: First Jeti Sensor was a bust
Replies: 15
Views: 1452

Re: First Jeti Sensor was a bust

Have you tried in U_center software to reconfigure the GPS e.g. changing the baud rate, the type of messages being sent, ... Some GPS said as NEO6,7 or 8 are clone and do not accept to be reconfigured and to generates UBOX type messages. oXs send Ublox commands to the GPS and so the GPS must be full...
by mstrens
Fri Apr 24, 2020 3:54 pm
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: OpenXSensor HoTT Temperature
Replies: 27
Views: 4099

Re: OpenXSensor HoTT Temperature

Is the other side of the NTC connected to gnd? Normally if you have 100K between A0 and Vin and the NTC (also about 100k at 25°) between A0 and gnd, the voltage on A0 shoud be 5/2 = 2.5V Have you read this (extract from description) Therefore, in section 6.1 and 6.2 , * USE_INTERNAL_REFERENCE must b...
by mstrens
Thu Apr 23, 2020 7:39 am
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: New to openXsensor - GPS and smartport question
Replies: 71
Views: 12011

Re: New to openXsensor - GPS and smartport question

Indeed, if you have a 5V regulated power supply, you can connect it to the 5V pin GPS can also be connected this way. Still when using e.g. a 4.8 V NiMh battery, the voltage when it is just charged is more than 6V. It is then safier to use VIN (= RAW). When input voltage goes below 5.5V on VIN, the ...
by mstrens
Wed Apr 22, 2020 12:06 pm
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: New to openXsensor - GPS and smartport question
Replies: 71
Views: 12011

Re: New to openXsensor - GPS and smartport question

If you power supply is about 5V, you can connect it to VIn. The Gps can also be connected to VIn.
For a nano, I expect that VIn will be similar to Vraw for a pro mini.
by mstrens
Wed Apr 22, 2020 7:16 am
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: PPM_SPORT Mode, not found VSPEED
Replies: 12
Views: 2276

Re: PPM_SPORT Mode, not found VSPEED

rmd4u wrote:
Tue Apr 21, 2020 7:54 pm
With its own config_basic and config_advanced in SDP3X, VSpd now works perfectly :P
thanks mstens
Thanks for the feedback.
I will put this version in Master branch when I got feedback from another user about the use of SDP3X sensor
by mstrens
Tue Apr 21, 2020 8:15 am
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: PPM_SPORT Mode, not found VSPEED
Replies: 12
Views: 2276

Re: PPM_SPORT Mode, not found VSPEED

I made some changes to oXs in order to fix this bug. I put a new version on github. Still take care that this new version is not in the branch "Master" but in a new branch named "SDP3X". I did it in this way because I was already working on a new version that should support a new type of airspeed se...
by mstrens
Mon Apr 20, 2020 9:36 pm
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: PPM_SPORT Mode, not found VSPEED
Replies: 12
Views: 2276

Re: PPM_SPORT Mode, not found VSPEED

I am sorry because I totally forgot your message.

I just checked the code and I can see some bugs.

I will try to fix it this week.
by mstrens
Sun Apr 19, 2020 7:13 am
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: GY-86 not working - am I missing something?
Replies: 43
Views: 6328

Re: GY-86 not working - am I missing something?

I did not recommend using the MS5611 temperature because it is usually a few degree above the real temperature. It is so, because oXs reads the sensor very often (50 X per sec) and so the MS5611 is heating. Still if you want it, you can make some changes to the openXsensor.ino file Currently in this...
by mstrens
Sat Mar 07, 2020 8:57 am
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: RPM resolution?
Replies: 218
Views: 27267

Re: RPM resolution?

First, a RC filter does not cut off 100% of the frequencies higher than a value. It is a progressive filter. More important: the formula applies on a sinusoîdal signal but the signal coming from the Hall sensor is not sinusoïdal. It is a digital signal and probably look more as a pluse. So it contai...
by mstrens
Wed Mar 04, 2020 7:18 am
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: RPM resolution?
Replies: 218
Views: 27267

Re: RPM resolution?

For RPM, oXs counts the number of pulses in an enlapsed time. If the signal coming on pin D8 is noisy, the arduino can recognise some "noise" as a pulse and so report a to high RPM value. In order to avoid (reduce) this, you can try adding a RC filter between the CDI and the pin D8. Resistor is put ...

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