We will show you how to build a speed control for only a fraction of the cost of those available commercially. This speed control uses a low-cost Pic12F675 micro controller and a few other basic components (resistors, capacitors, transistors, diodes and a regulator.) Below is a photo of the speed control connected to the motor of a Lite-STIK.
The speed control has the following features:
- A BEC (battery eliminator circuit), thus you don’t need an extra battery for your receiver
- Safety switch on – upon startup, the throttle must first be switched off before the speed control activates
- Adjustable maximum voltage output – you can limit the maximum output of the speed control (e.g. the motor is rated at 6V, but you want to use three lithium-ion batteries)
We also supply the source code of the Pic12F675 to enable anyone to modify it and add more features!
Disclaimer:
Please note that we do not guarantee anything. If the speed control doesn’t work or you end up killing yourself, don’t blame (or sue) us – we’re completely innocent.