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Turnigy 9x

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Module from MLP4DSM Wired Up

Here’s the module taken from the MLP4DSM transmitter that comes with E-Flite RTF kits. It shows the wiring necessary for hookup to the Turnigy 9x running custom firmware that supports the DSM2 protocol.

See this post for location of the 3.3v pad to solder the red wire to.

I added an LED inline with the PPM signal wire. Because the LED is a diode, it drops the voltage of the PPM line from 5v to the 3.3v that the DSM2 module can handle.

To protect the entire assembly, I used 1/2″ clear shrink tube. The clear shrink tube allows me to see the status LED onboard the DMS2 module.

Everything is working great with the latest th9x firmware. I was able to bind to my mSR by holding the trainer switch while powering up the transmitter.

On the er9x front. Mike Blandford was able to get the th9x source code properly added to the er9x firmware. Use build r635 or later. I was successful in using his firmware in connecting the Turnigy 9x TX to the mSR. Great job Mike!

*04/23/2012 Update*
This setup continues to work without a hitch for me. I have since bound to and controlled the following Blade models successfully: mCX2, mSR, mCP X, 120SR and mSR X.

Categories: Blade mSR, Turnigy 9x
13 Comments

Turnigy 9x 3.3v Location

The Turnigy 9x runs internally at 5v. But it also has a 3.3v regulator on the main board that is used to power the LCD. Here are a few of the locations of the 3.3v points that you can use. Make sure whatever unit you’re connecting to that 3.3v regulator doesn’t draw too much current or else you’ll get rebooting of the Turnigy 9x.

Location of the Turnigy 9x 3.3v Rails

Categories: Turnigy 9x
1 Comment

E-Flite Blade MLP4DSM Pinout

I am working on hacking the MLP4DSM TX module into the Turnigy 9x. This will allow for Spektrum DSM2 capability so I can control my helicopters using the DSM2 protocol. I will write up a more detailed post once I get all the details worked out. I got it working this morning and I was able to bind and control my mSR using the Turnigy 9x. I just need to tidy things up and come up with some step by step instructions.

Here are the pin outs from the MLP4DSM board. You’ll need to supply it 3.3v using a regulator.

Categories: Helicopter, Turnigy 9x
5 Comments
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