Voltage on the potentiometer connections?

Hardware help and support for the FrSky Taranis
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Erkar29
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Voltage on the potentiometer connections?

Post by Erkar29 » Sun Aug 02, 2020 6:46 am

I was thinking of replacing some of the potentiometers in my X9E with a hall effect sensor witch goes from 0v to 5v, can the main board handle voltage up to 5v on the pot connectors?


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Kilrah
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Re: Voltage on the potentiometer connections?

Post by Kilrah » Sun Aug 02, 2020 3:05 pm

No, 3V max.

Erkar29
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Re: Voltage on the potentiometer connections?

Post by Erkar29 » Mon Aug 03, 2020 5:53 am

Kilrah wrote:
Sun Aug 02, 2020 3:05 pm
No, 3V max.
Thanks! Is there any radios that uses 5v on the pot? Maybe I need to buy another radio anyway for this special project.

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kalle123
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Re: Voltage on the potentiometer connections?

Post by kalle123 » Mon Aug 03, 2020 6:17 am

Erkar29 wrote:
Mon Aug 03, 2020 5:53 am
Thanks! Is there any radios that uses 5v on the pot? Maybe I need to buy another radio anyway for this special project.
Might have a look here

https://www.rcgroups.com/forums/showthr ... and-OpenTx

br KH
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MEGA2560_sch.pdf
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Kilrah
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Re: Voltage on the potentiometer connections?

Post by Kilrah » Mon Aug 03, 2020 6:37 am

Pretty much nothing recent, but you could always add a voltage divider... hard to say much without understanding your project or the reason you need to use that one gimbal.


Erkar29
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Re: Voltage on the potentiometer connections?

Post by Erkar29 » Mon Aug 03, 2020 7:07 am

Kilrah wrote:
Mon Aug 03, 2020 6:37 am
Pretty much nothing recent, but you could always add a voltage divider... hard to say much without understanding your project or the reason you need to use that one gimbal.
My project is to build a custom transmitter case. I´m building a ship with Azipods and for that I´m also going to try build an Azipod controll unit as you see in the attached image. This controller should be able to turn 360 degree with no end points and for that I was thinking of buying a hall effect sensor like this https://www.dfrobot.com/product-1553.ht ... e885beefa2

The voltage on the sensor is 0-5v depending on its position, converting that to PWM signals on the receiver goes from 1000 up to 2000 and then back to 1000 after turning a complete 360 degrees. I was thinking to send the PWM signal from the receiver to an Arduino and hook this servo to the Arduino https://www.adafruit.com/product/3614

I have decided to buy a used radio instead of tear apart my X9E. I found that the Turnigy 9X uses 5v on the pot, Is there any other radios that use 5v?

The inspiration of the Azipod controller is from the ABB Azipod Controller https://www.abb-conversations.com/2013/ ... ign-award/
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Azipod control.jpg

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jhsa
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Re: Voltage on the potentiometer connections?

Post by jhsa » Thu Aug 06, 2020 6:38 am

If you search these forums, I did modify one of my 9x radios to hall sensor.
I built the sensors using its own potentiometers, some magnets, and hall sensors. Can't say it was an easy task, but they seem to work, even after a few years :)
I am not near my PC at the moment, so I can't post any link. :(

João
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