L9110S Dual Channel H-Bridge DC Stepper Motor Driver Module
Description
The L9110S Dual Channel H-Bridge Motor Driver Module is a compact and efficient motor control board designed for small robotics, DIY electronics, and embedded motor control applications. Based on the L9110 motor driver IC, the module can independently control two DC motors or a single two-phase four-wire stepper motor.
The module operates within a wide voltage range of 2.5V to 12V DC, making it compatible with both 3.3V and 5V microcontroller platforms such as Arduino, ESP-based boards, STM32, and other development systems.
Each onboard H-bridge driver channel can deliver up to 800mA continuous output current, enabling reliable operation of small DC motors and miniature robotic drive systems. Motor speed control can be achieved using PWM (Pulse Width Modulation) signals, while motor direction is controlled using digital logic inputs.
The module features integrated protection circuitry including built-in clamping diodes for inductive loads and high-voltage protection functions, improving operational safety and reliability. Screw terminal connectors provide secure motor connections, while onboard mounting holes allow easy installation into robotics projects and embedded systems.
Features
- Dual-channel H-bridge motor driver module
- Based on the L9110S motor driver IC
- Supports control of two DC motors or one stepper motor
- Wide operating voltage range from 2.5V to 12V DC
- 800mA continuous output current per channel
- PWM speed control support
- Digital direction control interface
- TTL/CMOS logic level compatible
- Integrated clamping diodes for inductive load protection
- Low power consumption and low saturation voltage drop
- Compact and lightweight module design
- Easy mounting with onboard fixing holes
Applications
- Mini robotics projects
- DC motor control systems
- Stepper motor control
- DIY automation projects
- Educational electronics projects
- Embedded motor control systems
- Arduino and microcontroller projects
Basic Connection Instructions
- VCC: Connect external 2.5V – 12V DC power supply
- GND: Connect common ground
- IA1 / IB1: Motor Channel 1 control inputs
- IA2 / IB2: Motor Channel 2 control inputs
- OA1 / OB1: Motor 1 output terminals
- OA2 / OB2: Motor 2 output terminals
Motor direction is controlled by changing the logic states of IA and IB input pins. PWM signals can be applied to control motor speed.
Package Includes
- 1 × L9110S Dual Channel H-Bridge DC Stepper Motor Driver Module
Specifications
| Parameter | Value |
|---|---|
| Model Series | L9110 Series |
| Operating Voltage | 2.5V – 12V DC |
| Current Rating | 0.8A |
| Continuous Output Current | 800mA per Channel |
| Input Voltage | 2.5V – 12V DC |
| Logic Compatibility | TTL / CMOS Compatible |
| Operating Temperature | 0°C to 80°C |
| Dimensions (L × W × H) | 29.2 × 23 × 15 mm |
| Weight | 7 g |
| Shipping Weight | 0.01 kg |
| Shipping Dimensions | 5 × 5 × 2 cm |
