U181 · M5Stack
Unit BLDC Driver is a driver unit specially designed for brushless DC (BLDC) motors. It adopts an STM32 MCU as the main controller and communicates via I2C to precisely control the DRV11873PWPR motor-driver chip, enabling PWM speed regulation, direction switching, and more. The driver chip features a simplified control interface and integrated stall protection, providing efficient and low-noise operation for small three-phase BLDC motors. The on-board STM32 upgrade interface facilitates… (M5Stack U181)
| Part number | U181 |
|---|---|
| Manufacturer | M5Stack |
| Category | Motor Drivers & Controllers › Brushless ESCs |
| Pins | 4 |
BLDC Motor Driver Unit (STM32) pinout
| Pin | Name | Type | Description |
|---|---|---|---|
| 1 | SCL | input | |
| 2 | SDA | bidirectional | |
| 3 | 5V | power | |
| 4 | GND | ground |
Schematic symbol and footprint
Schematic symbol
Footprint: Grove HY2.0 4-pin through-hole, 2.0 mm pitch — to scale, pad 1 in yellow (mm). Check against the datasheet before ordering PCBs.
