Unit HBridge
Description
Unit HBridge is a DC motor driver module that uses the "STM32F030 + RZ7899" solution to achieve motor driving functions. It communicates with the M5 host via I2C to implement PWM control of speed, forward, reverse, and braking functions. The module has reliable overcurrent, overvoltage, and overheating protection functions to ensure the safe operation of the motor. Additionally, it includes a circuit that switches between 6 ~ 12V and 5V to accommodate different motor input power requirements. This product is widely used in robotics, motor driving, industrial automation, and smart home applications.
Features
- Overcurrent, overvoltage, and overheating protection
- Power switching
- I2C address: Default 0x20
- Programming platforms: Arduino, UIFlow
Includes
- 1 × Unit HBridge
- 1 × VH3.96-4P
- 1 x HY2.0-4P Grove connection cable (20cm)
- 1 x L-shaped hex wrench 1.5mm (for M2 screws)
Applications
- Robotics
- Motor driving
- Industrial automation
- Smart home
Specifications
| Specification | Parameter |
|---|---|
| MCU | STM32F030F4P6 |
| DC Bidirectional Motor Driver Chip | RZ7899 |
| External DC Voltage Input | MAX 12V |
| I2C Communication Address | Default 0x20 (modifiable via DIP switch) |
| Maximum Allowable Current | 3A |
| Operating Temperature | 0 ~ 40°C |
| Product Size | 56.0 x 24.0 x 10.2mm |
| Product Weight | 8.9g |
| Package Size | 138.0 x 93.0 x 11.2mm |
| Gross Weight | 18.1g |
Learn
470uF Aluminum Electrolytic Capacitor
Connect the supplied aluminum electrolytic capacitor to the positive and negative terminals of the power input to provide buffer protection to the circuit. Be careful not to connect it in reverse!
Motor Power Selection
Motor Power Selection
The Unit HBridge integrates an internal DC/DC buck circuit that can reduce the 6 ~ 12V input from the external 3.96 terminal to 5V to adapt to different motor power requirements. It also provides a power switch to choose whether the motor power uses the external 6 ~ 12V input or the 5V after DC/DC buck. In actual use, please select the appropriate drive voltage according to the motor specifications.
Schematics
PinMap
Unit HBridge
| HY2.0-4P | Black | Red | Yellow | White |
|---|---|---|---|---|
| PORT.A | GND | 5V | SDA | SCL |
Model Size
Datasheets
Softwares
Arduino
UiFlow1
Internal Firmware
Protocol
