B-G431B-ESC1 Discovery Kit

STMicroelectronics B-G431B-ESC1 Discovery Kit is based on the STM32G431CB microcontroller, the L6387 driver and STL180N6F7 power MOSFETs. The kit is composed of the main power board and a daughterboard with embedded ST-LINK/V2-1. It is an electronic speed controller (ESC) designed to drive a single 3-phase brushless motor (BLDC/PMSM). It performs both a sensorless FOC algorithm and 6-step control with speed regulation and an active braking function algorithm. The ST sensorless FOC algorithm ensures longer flight times and optimal dynamic performance. This unit accepts a command signal from an external unit for driving and monitoring, for instance, a flight control board or equivalent. For this purpose, several communication bus interfaces (UART, CAN, PWM channel) are present. A potentiometer and a user button are available for user application. The daughterboard includes a 5V battery eliminator circuit (BEC) and the main board embeds an overcurrent/overvoltage and thermal protection circuit. The form factor makes it suitable for small and very light R/C vehicles (FPV race drone) and the motor current capability fits the power requirement of big vehicles like a prosumer drone.

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