4 Pack L9110S Dual‑Channel DC Motor Driver Module – DC & Stepper Motor Driver

Product Description

The L9110S Dual‑Channel Motor Driver Module is a lightweight, low‑cost board designed to drive small brushed DC motors and simple stepper motors in hobby and educational projects. Each channel provides a full H‑bridge, allowing forward and reverse control of two independent DC motors, or paired operation for a single bipolar stepper.

Compared to larger motor shields, this module is very compact and easy to integrate on breadboards or small PCBs, making it a great choice for miniature robots, fans, and simple motion systems. Control is handled via standard logic‑level inputs, so you can drive it directly from Arduino, ESP32, or similar microcontrollers using basic digital pins and optional PWM for speed control.

Ideal Uses

• Mini robot cars and line‑following robots using two small DC gear motors.
• Simple stepper motor projects with low‑current steppers (e.g., small 4‑wire steppers).
• Fans, small pumps, and mechanical toys requiring forward/reverse control.
• Educational labs demonstrating H‑bridge control, PWM speed control, and basic motor direction logic.

Compatibility

• Works with Arduino, ESP32, ESP8266, and other microcontrollers using standard digital I/O for IN1/IN2/IN3/IN4, plus optional PWM for speed.
• Suitable for low‑voltage DC motors (commonly in the 3–12 V range, depending on module and motor ratings).
• Can drive two independent DC motors or a   single small stepper motor when wired appropriately.
• Compatible with most common breadboards and jumper‑wire prototyping setups thanks to its small PCB and pin header layout.

Key Features

• Dual H‑bridge driver based on the L9110S IC, providing two motor channels.
• Can drive two DC motors (forward/reverse) or one bipolar stepper.
• Typical motor voltage support around 2.5–12 V (check your specific module’s printed rating).
• Typical continuous current per channel in the hundreds of milliamps range, suitable for small motors.
• Simple 4‑input control (IN1–IN4) for direction, with the option to use PWM on inputs for speed control.
• Compact module with clearly labeled pins and screw terminals or pin headers for easy wiring.

Technical Specs (Typical, Module‑Dependent)

• Exact specs can vary by manufacturer; always check the silkscreen or datasheet for your specific module:
• Driver IC: L9110S dual H‑bridge.
• Motor Supply Voltage (VM): typically   2.5–12 V.
• Logic Voltage: typically compatible with 3.3 V and 5 V logic signals.
• Continuous Output Current: usually around 800 mA per channel (peak currents higher; derate for sustained loads).
• Number of Channels: 2 (each channel drives one DC motor; both channels together can drive one stepper).
• Interface Pins: IN1/IN2 (Motor A), IN3/IN4 (Motor B), VCC/VM, GND.

What’s Included

• 1 × L9110S Dual‑Channel DC Motor Driver Module

(Depending on supplier, headers may be pre‑soldered or included loose.)

Safety Note

Ensure your motor voltage and current are within the L9110S module’s rated limits; overloading can overheat or permanently damage the driver.

Use a separate power supply for motors when possible, and connect grounds together, to avoid brownouts on your microcontroller.

Double‑check polarity for motor supply and wiring before powering the system.

Because motors are inductive loads, include appropriate decoupling capacitors near the motor supply and consider additional suppression if your application is sensitive to electrical noise.