Should be able to use just a transmitter module and a bound receiver if you want to save money. Just need to catch the data on the s.port socket.
The receiver goes aloft.
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Search found 23 matches
- Sat Apr 17, 2021 8:33 pm
- Forum: OpenXVario - an open source vario supported by the open source firmwares!!
- Topic: Adafruit BME280 I2C for meteorological data
- Replies: 1
- Views: 2868
- Tue Apr 06, 2021 12:09 am
- Forum: OpenXVario - an open source vario supported by the open source firmwares!!
- Topic: Looking to do ~35Hz PWM on a pin
- Replies: 0
- Views: 2596
Looking to do ~35Hz PWM on a pin
I see timer1 and timer2 are both being used in oXs_general.cpp. I assume one is used for reading an RC channel. What's the other one being used for and can I use it for my 35Hz pwm needs?
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- Mon Nov 23, 2020 11:50 pm
- Forum: OpenXVario - an open source vario supported by the open source firmwares!!
- Topic: Need 30hz PWM out on a pin based on a channel input
- Replies: 2
- Views: 2994
Re: Need 30hz PWM out on a pin based on a channel input
I'm now realizing 8 bit pwm is standard. I was hoping for 10 bit at something around 30hz. I think I can do that on pin 11 using timer1.
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- Sat Nov 21, 2020 9:32 pm
- Forum: OpenXVario - an open source vario supported by the open source firmwares!!
- Topic: Need 30hz PWM out on a pin based on a channel input
- Replies: 2
- Views: 2994
Need 30hz PWM out on a pin based on a channel input
I'd like to build an openxsensor with 2 temperature sensors, rpm, and the ability to read a channel and output to a pin a pwm 30 times a second.
Before I build the hardware, does an Arduino have enough power to do all that?
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Before I build the hardware, does an Arduino have enough power to do all that?
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- Sun Aug 21, 2016 9:36 pm
- Forum: OpenXVario - an open source vario supported by the open source firmwares!!
- Topic: oXs with two simultaneous current sensors
- Replies: 12
- Views: 9980
Re: oXs with two simultaneous current sensors
My pleasure
- Sun Aug 21, 2016 6:57 pm
- Forum: OpenXVario - an open source vario supported by the open source firmwares!!
- Topic: oXs with two simultaneous current sensors
- Replies: 12
- Views: 9980
Re: RE: Re: oXs with two simultaneous current sensors
viewtopic.php?t=8976kalle123 wrote:How did you help me? Must have forgotten ...raleighcoter wrote:Glad i could help both of you.
- Sun Aug 21, 2016 5:47 pm
- Forum: OpenXVario - an open source vario supported by the open source firmwares!!
- Topic: oXs with two simultaneous current sensors
- Replies: 12
- Views: 9980
Re: oXs with two simultaneous current sensors
Glad i could help both of you. I enjoy spreading the hobby.
- Sat Aug 20, 2016 11:46 pm
- Forum: OpenXVario - an open source vario supported by the open source firmwares!!
- Topic: oXs with two simultaneous current sensors
- Replies: 12
- Views: 9980
Re: oXs with two simultaneous current sensors
Who is kalle123? I thought I was the inspirer. By the way, current sensors output a voltage that is proportional to current measured. You can hook up 6 current sensors as voltage sensors. All you need to do is figure out the range and offset in opentx. Hint: the n2 minihub instructions have the rang...
- Sun Jul 03, 2016 1:46 pm
- Forum: OpenXVario - an open source vario supported by the open source firmwares!!
- Topic: Thanks openXsensor
- Replies: 4
- Views: 4744
Re: Thanks openXsensor
...power in goes to raw pin and you can grab 5v regulated and ground from all over the arduino
- Sun Jul 03, 2016 1:42 pm
- Forum: OpenXVario - an open source vario supported by the open source firmwares!!
- Topic: Thanks openXsensor
- Replies: 4
- Views: 4744
Re: Thanks openXsensor
Rpm is from the CDI on my DLE30. Just a single signal wire to digital pin 8. Current is an acs712 to analog pin 2. Current sensor gets power and ground. Rpm doesn't need ground in my setup because i run an opto switch it ties ground on the engine to the radio. If not you'll need ground for the rpm c...
- Sat Jul 02, 2016 8:33 pm
- Forum: OpenXVario - an open source vario supported by the open source firmwares!!
- Topic: Thanks openXsensor
- Replies: 4
- Views: 4744
Thanks openXsensor
Made an rpm/current sensor for my airplane for $4 and about 20 minutes of my time. Now i get pack capacity and engine run status. Commercial products to do this cost about 40 bucks. Outstanding.
- Tue May 24, 2016 1:05 am
- Forum: OpenXVario - an open source vario supported by the open source firmwares!!
- Topic: Is there a jeti telemetry library?
- Replies: 1
- Views: 3876
Re: Is there a jeti telemetry library?
Never mind, found one. Now to get it integrated.
- Tue May 24, 2016 12:12 am
- Forum: OpenXVario - an open source vario supported by the open source firmwares!!
- Topic: Is there a jeti telemetry library?
- Replies: 1
- Views: 3876
Is there a jeti telemetry library?
I'd like to try using this on jeti. Does anybody know if there's a jeti telemetry library to start from?
- Fri Apr 22, 2016 12:31 pm
- Forum: OpenXVario - an open source vario supported by the open source firmwares!!
- Topic: Creating an RPM and Temp Sensor
- Replies: 53
- Views: 39961
Re: Creating an RPM and Temp Sensor
Thanks mstrens. That was a great explanation. Just need my arduino delivered and i can set this up.
- Thu Apr 21, 2016 9:59 pm
- Forum: OpenXVario - an open source vario supported by the open source firmwares!!
- Topic: Creating an RPM and Temp Sensor
- Replies: 53
- Views: 39961
Re: Creating an RPM and Temp Sensor
Thanks mike. Are there examples for configuring osx? How are the calibration tables defined?
- Thu Apr 21, 2016 8:57 pm
- Forum: OpenXVario - an open source vario supported by the open source firmwares!!
- Topic: Creating an RPM and Temp Sensor
- Replies: 53
- Views: 39961
Re: Creating an RPM and Temp Sensor
It... Is on my computer at work. Ultimately i want to use the same rtd that came with my sp-rpm sensors which are 100k ntc rtd devices to measure headntemp on my gas helicopter and to also pick up rpm from a hall sensor. Rpm is easy. Temp is a bit lacking in the literature.
- Thu Apr 21, 2016 8:52 pm
- Forum: OpenXVario - an open source vario supported by the open source firmwares!!
- Topic: Creating an RPM and Temp Sensor
- Replies: 53
- Views: 39961
Re: Creating an RPM and Temp Sensor
But the resistance of the rtd varies from around a few K to over several hundred k over the temp range for 100k ntc rtd, and the important temps happen at the low end of the resistance range for my application.
- Thu Apr 21, 2016 8:38 pm
- Forum: OpenXVario - an open source vario supported by the open source firmwares!!
- Topic: Creating an RPM and Temp Sensor
- Replies: 53
- Views: 39961
Re: Creating an RPM and Temp Sensor
I would have thought the input pin would have a higher impedance to reduce the current drawn thru the input pin while the source should support a lower impedance to provide that voltage/power without sagging. Additionally, higher resistance will reduce power dissipated in the rtd as heat.
- Thu Apr 21, 2016 8:31 pm
- Forum: OpenXVario - an open source vario supported by the open source firmwares!!
- Topic: Creating an RPM and Temp Sensor
- Replies: 53
- Views: 39961
Re: Creating an RPM and Temp Sensor
I was not aware.
- Thu Apr 21, 2016 8:26 pm
- Forum: OpenXVario - an open source vario supported by the open source firmwares!!
- Topic: Creating an RPM and Temp Sensor
- Replies: 53
- Views: 39961
Re: Creating an RPM and Temp Sensor
I could eventually use a 10k but the 100k will draw less current and the voltages out should be similar if wired in series with another resistor between ground and 3.3v. I assume i pick an analog input pin but am not sure how to configure oxs.
- Thu Apr 21, 2016 7:47 pm
- Forum: OpenXVario - an open source vario supported by the open source firmwares!!
- Topic: Creating an RPM and Temp Sensor
- Replies: 53
- Views: 39961
Re: Creating an RPM and Temp Sensor
Using a life battery to power the arduino pro. Will use a 100k ntc rtd with a series resistor around 10k wired between regulated 3.3v and ground and measure voltage across the voltage divider. I'm interested in 100-300 F so i'll fit a linear curve in that range. Does that sound about right?
- Wed Apr 20, 2016 8:55 pm
- Forum: OpenXVario - an open source vario supported by the open source firmwares!!
- Topic: Creating an RPM and Temp Sensor
- Replies: 53
- Views: 39961
Re: Creating an RPM and Temp Sensor
Any recommendation on the resistor to use in the required voltage divider? How do i map the resulting voltage to temperature? Is there some documentation i can read?
- Tue Apr 19, 2016 9:50 pm
- Forum: OpenXVario - an open source vario supported by the open source firmwares!!
- Topic: Creating an RPM and Temp Sensor
- Replies: 53
- Views: 39961
Re: Creating an RPM and Temp Sensor
Looking to do this on an arduino pro with hall sensor and standard rtd for temp. Did you or anyone ever get this working?