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Old Sep 01, 2011, 11:39 PM
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Question
Getting RPM from RCExl ignition

The RCExl ignition modules for gas engines has an output for RPM from the hall sensor. Anybody know if this output could be used with the telemetry? Here's a picture of the ignition with their tach Y'd in with the hall sensor.
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Old Sep 02, 2011, 04:56 AM
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Joined Aug 2002
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Quote:
Originally Posted by NefariousRC View Post
The RCExl ignition modules for gas engines has an output for RPM from the hall sensor. Anybody know if this output could be used with the telemetry? Here's a picture of the ignition with their tach Y'd in with the hall sensor.
No reported interface as yet, but as you are using RCExl ignition, just in case RCExl kill switch also
and missed the following post, on ARCG > Radios, :
"Don't use RCEXL switch as an optical kill switch", is recommended reading

Alan T.
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Old Sep 02, 2011, 01:42 PM
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Thank you. I did in fact see the info regarding the ignition kills.
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Old Dec 08, 2011, 07:25 PM
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Netherlands
Joined Jun 2006
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Hi Guys,

I fixed this issue of feeding the CDI rpm output safely back to logger or telemetry input.
Watch this:

http://www.rcgroups.com/forums/showthread.php?t=1486857

Simple once you know how. I got data from RCEXL about the way the output works.
After that is was easy.
Let me you if this helps you.
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Old Oct 29, 2012, 04:37 AM
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Joined Apr 2006
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Hi Guys,

I use the RMP output from the RC-EXL directly to the Jeti MRPM-ac Sensor.
Use the black and withe leads that come out of the ignition unit.
When you don't have a readout, just switch the leads.
In the setup menu of the jeti-box set the number of poles to just one.

I use it to read out the RPM on my RC paraglider model:
www.rc-ppg.nl/en

Good luck


Piet
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