Electronic Speed Control X4

Firmware source code for escX4, a true 4 in 1 ESC designed for tiny multi-rotors.

escX4 features:

1. True 4 in 1 ESC. 4 ESCs controlled by the same MCU (STM32F405).
2. Size: 40mm x 40mm. Net weight: 6g (exclude wires).
3. Support 2S/3S Li-Po battery, 5A BEC and 6A continuous current for each ESC.
4. Firmware download, control and monitor via on board USB (micro USB connector)