I have servos that have 180 degree range, but that requires the PWM to go from .5mS to 2.5mS. My controller / radio combination delivers 1ms to 2mS range. Is there any product out there that doubles the PWM range? If not, would there be any demand for a little in-line module that does that?
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Hi @xtbjeff and welcome to our forum.
You can use servo extender. These devices take the incoming 1-2ms pulse and change the range of the output to 500us to 2500us, which for many servos will cause them to overtravel up to 180degrees. Not all servos will work with this method.
Here is one example: Servo Extender
I hope this helps. Feel free to ask anything else.
Thank you. That is exactly what I was looking for. I started designing my own yesterday, and may continue depending on how well this one works (ordered from Amazon).
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You are welcome. Let us know what works in the end 
That worked perfectly for a fraction of the cost of making my own. Thanks again!
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You are welcome