Graupner Ultra Control 4-in-1 30A 2-4S BLS

Graupner Ultra Control 4-in-1 30A is an older 4-in-1 ESC that stands out mainly for its price. The ESC supports 2-4S LiPo batteries and current up to 30A. It is therefore particularly suitable for smaller 3-4" drones. The mounting pattern is 30.5x30.5mm. The ESC is not equipped with a standard connector and must be connected to the flight controller via solder pads on the underside, where there are pads for the current sensor, ground and 4 motor signals. The voltage supply for the flight controller must be connected to the XT60 connector.

The battery is connected via a soldered XT60 connector. The ESC uses open-source BLHeli_S firmware on 50MHz Silabs processors. It recognizes PWM (PPM), OneShot, Multishot and DShot input protocols.