Bought a cheap mCPX off eBay that had a broken 3-in-1. Fixed the 3-in-1 and converted to brushless using C05XL and super-FET XP-3A (double FET’s).
Main motor PWM signal (from resistor on back of board) is 1kHz. On the 9x using OrangeRX TX module throttle ranges from -72% (completely off) to +72% (solid full throttle signal).
![V922 BLHeli ESC](https://gurumeditation.org/wp-content/uploads/sites/6/2022/02/img_6218f5f5162e4.jpg)
![mCPX PWM](https://gurumeditation.org/wp-content/uploads/sites/6/2022/02/img_6218f5f540ac6.png)
![mCPX PWM](https://gurumeditation.org/wp-content/uploads/sites/6/2022/02/img_6218f5f57ef77.png)