Unit EncoderMotor Driver
SKU:U232
Description
Unit EncoderMotor Driver is a single-channel encoder DC motor driver unit featuring an STM32G031G8U6 main controller. It uses an I2C communication interface and provides one DC 5V motor output with a corresponding A/B encoder input, making it suitable for 6-wire encoder geared motors and TT geared motors. The driver supports PWM speed control, forward/reverse control, and closed-loop speed and position control. It integrates an INA199A current-sensing circuit and motor operating voltage detection, enabling real-time monitoring of motor current and voltage.
An onboard programmable RGB LED indicates the device operating status. The unit accepts an external DC 6 ~ 12V input and provides a DC 5V motor output through an onboard DC-DC buck converter. It is suitable for robot drive mechanisms, joint modules, smart cars, and similar applications.
Features
- STM32G031G8U6 main controller
- Single-channel encoder motor drive
- Compatible with 6-wire encoder geared motors / TT geared motors (M+ / M- / GND / 5V / EN_B / EN_A)
- Supports 3 ~ 15 PPR encoders
- Motor control
- PWM speed control
- Forward/reverse / stop
- A/B phase counting
- Speed loop / position loop closed-loop control
- Soft start / soft stop
- Sleep
- I2C communication interface
- Default address 0x2F, software-configurable (0x08 ~ 0x77)
- Flexible power supply
- External power input: DC 6 ~ 12V
- Grove interface power input: DC 5V
- Integrated DC-DC buck converter for motor power and Grove interface output, with a maximum load of DC 5V@8A
- Motor load
- External power supply: maximum motor load DC 5V@1.2A
- Grove interface power supply: total load ≤ DC 5V@1A
- Power monitoring
- INA199A motor current detection
- Motor DC 5V operating voltage detection
- Programmable RGB indicator
Includes
- 1 x Unit EncoderMotor Driver
- 1 x HY2.0-4P Grove cable (20cm)
- 1 x PH2.0-2P cable (100mm)
- 1 x PH2.0-6P cable (100mm)
Applications
- Closed-loop control of encoder motors
- Robot drive mechanisms / joint drives
- Smart cars
- Speed / position control for conveyors, turntables, and similar equipment
- STEAM education and motor control instruction
Specifications
| Specification | Parameter |
|---|---|
| MCU | STM32G031G8U6 |
| Communication Interface | I2C @ 0x2F, software-configurable (0x08 ~ 0x77) |
| Motor Driver | Single-channel DRV8837DSGR H-bridge motor driver |
| Motor Load | Maximum load: DC 5V@1.2A (external input supply DC 6 ~ 12V) |
| Motor Operating Modes | PWM speed control, forward/reverse, soft start / soft stop, speed loop, position loop, sleep |
| Encoder | Single-channel AB encoder input, supports 3 ~ 15 PPR |
| Encoder Motor Interface | PH2.0-6P, compatible with 6-wire encoder geared motors / TT geared motors (M+ / M- / GND / 5V / EN_B / EN_A) |
| Power Supply | PH2.0-2P external DC power input: DC 6 ~ 12V HY2.0-4P Grove power input: DC 5V |
| Current Detection | INA199A |
| RGB LED | 1x WS2812C-2020 |
| Product Size | 32.1 x 24.0 x 8.0mm |
| Product Weight | 4.8g |
| Package Size | 138.0 x 93.0 x 11.0mm |
| Gross Weight | 13.4g |
Schematics
PinMap
HY2.0-4P
| HY2.0-4P | Black | Red | Yellow | White |
|---|---|---|---|---|
| PORT.A | GND | 5V | SDA | SCL |
Model Size
Structure
Datasheets
Softwares
Arduino
Protocol
Video
Product Comparison
| Product Compare | Unit EncoderMotor Driver | Unit 4EncoderMotor Driver  |
|---|---|---|
| Communication Interface | I2C | I2C |
| Channel Count | 1-channel encoder motor | 4-channel encoder motor |
| Motor Driver | DRV8837DSGR | 4x DRV8837DSGR |
| Main Controller | STM32G031G8U6 | STM32F030C8T6 |
| Encoder Motor Interface | 1x PH2.0-6P | 4x PH2.0-6P |
| Power Input | DC 6 ~ 12V (1x PH2.0-2P) | DC 6 ~ 12V (2x PH2.0-2P) |
| Load Capacity | DC 5V@1.2A | Single-channel DC 5V@1.2A |
| Current Detection | INA199 | INA199 |
| Grove Interface | 1x HY2.0-4P | 2x HY2.0-4P |
| Product Positioning | Single-motor control | Multi-motor control |