In RC hobby signal inversion may be required when connecting various components together, i.e. RC receivers to helicopter flybarless units or other flight controllers. This is particularly often required in case of one wire protocols, like SBUS, PPM or Smart Port – the last one being specific to FrSky products.
OpenTX – nitro helicopter config (and much more)
The OpenTX offers almost unlimited possibilities for configuring RC models. This article covers a detailed and quite advanced OpenTX configuration for a nitro helicopter, operating under control of MSH Brain 2 flybarless unit.