L9110S Dual Motor Driver Module

The L9110S Dual Motor Driver Module is a compact, cost-effective solution for bidirectional control of two DC motors or a 2-phase (4-wire) stepper motor. Built around the L9110 driver IC, it operates from 2.5–12 V and supports PWM speed control directly on its input pins. There is no enable pin; both channels are always active, making it straightforward for small robotics and general motor control projects.

Key Features ✨

• Dual-channel H-bridge for two DC motors or one 2-phase (4-wire) stepper
• Wide supply range: 2.5–12 V
• PWM speed control via direct PWM on input pins
• Bidirectional control per channel (forward/reverse)
• Continuous current: 800 mA per channel; peak: up to 2 A (per module specification)
• Compact board size: 31 × 22 mm; weight: ~7 g
• Ideal for mini-sumo, line-follower, and general robotics projects 🤖

Specifications 📐

• Driver IC: L9110S
• Supply (Vcc): 2.5–12 V
• Output voltage: follows Vcc (approximately Vcc minus driver drop); not a fixed value
• Current rating: 800 mA continuous per channel; up to 2 A peak (module spec)

Pinout 🔌

• IA2 – Left motor input 1
• IB2 – Left motor input 2
• IA1 – Right motor input 1
• IB1 – Right motor input 2
• GND – Ground
• Vcc – Module supply

Usage Notes 🧭

• Speed control: apply PWM to the IA*/IB* inputs.
• Direction control: set logic levels on IA* and IB* for each channel.
• No enable pin: both channels are always active.
• Grounding: share a common GND between the module and your controller.
• Power: ensure the motor supply is within 2.5–12 V and suitable for your motors.