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United States, WI, Milwaukee
Joined Sep 2021
70 Posts
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Question
Spektrum
I have a Spektrum AR10100T receiver which I would like to use the RPM port with my Ignition CDI box. Can i use the Spektrum lead SPMA3066
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United States, WI, Milwaukee
Joined Sep 2021
70 Posts
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Let me clanrify want I'm looking for. I have a AR10100T spektrum receiver with telemtry. I would like to use the RPM port on the receiver to hook up the RPM lead off the ignition CDI box. I have e-mailed spektrum (horizon hobby) and no one has replied back. But I did find out that spektrum had a RPM Telemetry Adapter but it's DISCONTINUED . So i'm hoping that someone has an answer. I did find a store that makes the adapter but it over sea.
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United States, IL, Champaign
Joined May 2014
141 Posts
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We don't do support by e-mail. You have to use the web link. https://www.horizonhobby.com/content...r-tech-support
You might find the Evolution part in stock somewhere. It was a very low volume item, which is how it was discontinued. You found a third party item - order it. I get stuff for my airguns from UK all the time. Andy |
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United States, WI, Madison
Joined Sep 2023
45 Posts
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I am actually doing (trying) the exact same thing with an AR10100T and a Brightbeats tachometer interface:
(https://www.usabrightbeats.com/produ...r-dle-engines/) But so far no bueno. I have the tach. interface connected to the DLE RPM signal lead from the CDI, then the interface is connected to the RPM port on the AR10100T using a SPM9013 remote receiver extension. The blue light on the interface blinks when the propeller is rotated, which according to Brightbeats is a sign that the interface is good up to that point. Up until I found this RPM interface, I was using the DLE On-board tachometer from Horizon which worked great. So I am assuming that the RPM signal lead from the CDI is functioning. Problem is, I don't get the RPM on the telemetry screens on my NX8. Is there something that I need to program in the transmitter to read/display the RPM? What am I missing here? Thank you! |
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United States, IL, Champaign
Joined May 2014
141 Posts
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I'm not at all familiar with that device, so please illuminate me a little. I assume that, wired correctly, it will work.
The dashes indicate that there is no RPM data right now. The engine needs to be running at no less than about 400 RPM for it to provide data. This is a limitation of the hardware. If you are looking for RPM by flipping the prop, it won't register even though the lights blink. If you have the engine running when doing this, then the next question is, Is the connector wired properly? Andy |
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United States, WI, Madison
Joined Sep 2023
45 Posts
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The Brightbeats Tachometer interface "looks" similar to the discontinued Evolution device?
Here is a cut and paste from Brightbeats website, that way no one has to click on the link: "Since we love model airplanes too we made this a side project, This is an opto isolated tach interface for DLE engines to directly connect to a telemetry input on a Spektrum telemetry module. It is fully isolated so there is no risk of any kind of voltage getting back to your radio." The dashes make sense when the engine is not running. Unfotunately it's the same picture when the engine is running. That's my hurdle! When you say "connector" wired correctly, do you mean the interface? I have the interface connected to the Ignition RPM lead, brown to black. Then a remote receiver extension is plugged into the interface which can only be plugged in one way because the pins favor the top or bottom, and the same with the other end of the remote receiver extension going to the RPM port of the receiver. This seems like it should be plug-n-play with no further setup. Am I correct in thinking that? (assuming the Brightbeat interface is operating correctly, or operating like the old Evolution interface?) |
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United States, IL, Champaign
Joined May 2014
141 Posts
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Quote:
Electrically. Make sure your connector cable is in the same order on both ends. If pins are swapped, it won't work. Quote:
Yes, I read that earlier. No usable information. Quote:
The orange/gray/brown lead. I assume they used the same sequence we use, so it should be the same order on both ends. Unless it's not supposed to be - which is something that would have been useful for them to post. I assume that they colors are the same order, or should be. If you can verify it, that would be great. Another possibility is that the cable itself is not good. Got another one you can replace in the system? Quote:
I would make the same assumption. Have you tried asking them for debugging info? Do they have an engineer available for me to talk to? Engineer-to-engineer might be more effective than what we have going here right now. Andy |
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United States, WI, Madison
Joined Sep 2023
45 Posts
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The connector cable is the same on both ends.
I verified the remote receiver cable is good with a volt meter. I don't know how to test the path on the interface between the servo style connector and the remote receiver plug? I provided a link to this thread asking if he/they would be willing to help out, so I'm hopeful they will join the party! |
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Joined Sep 2016
6 Posts
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Hi guys, I designed this adapter. This was originally designed to be used with the TM1000 using the cable that comes with it. It simply pulses the output on the OPTO "connecting" the two leads going back to the Spektrum module (ground and pulse input). The power lead (+V) is not used but I did add in a pull up resistor (10K) from +V from the Spektrum connector to the pulse input pin in case it was needed. You would need to connect the J4 pins by soldering them on the board but I have never had an issue before. Unless there has been a design change I would suspect the cable but there is always a slim possibility there is an issue with the board.
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United States, WI, Madison
Joined Sep 2023
45 Posts
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Thanks you guys!
So it sounds like I need to get the pull-up functioning. I'll get with Brightbeats for guidance on that. Out of curiosity, would the old Evolution rpm adapter function correctly on a modern Spektrum telemetry receiver, or was that designed only to work with the old telemetry modules? Thanks guys, really appreciate the participation and guidance on this!!! |
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United States, WI, Madison
Joined Sep 2023
45 Posts
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Update,
Based on the guidance provided by Brightbeats, I was able to make this work! The J4 terminals needed to be soldered together. I used a copper wire through the (2) J4 holes and soldered on the back side. Works exactly like it should. Thank you to Brightbeats, and Andy for helping me figure this out, I really appreciate you guys being involved with this. |
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