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The Boardoza L9110S Breakout Board is a dual-channel DC motor driver board built around the L9110S motor driver IC. It integrates a two-channel push-pull power amplifier in a compact breakout form, enabling bidirectional control of two DC motors through simple logic-level inputs.
The board supports TTL / CMOS compatible control signals and features low output saturation voltage along with integrated clamp diodes for inductive load protection. These characteristics make it suitable for low-voltage motor control in embedded systems, including robotics platforms, educational development boards, small automation projects, and basic stepper motor driving applications where direct GPIO-based motor control is required.
| Front Side | Back Side |
|---|---|
Model: L9110S
Manufacturer: Boardoza
Manufacturer IC: Generic / Multiple vendors
Board Type: Dual Channel DC Motor Driver Breakout Board
Input Voltage Range: 2.5 V – 12 V
Output Current: 750–800 mA continuous per channel
Peak Current: Up to 1.5 A
Logic Level Compatibility: TTL / CMOS
Motor Channels: 2 (Independent control)
Supported Loads: DC motors, stepper motors, relays, inductive loads
Power Input Type: 2-pin 2.50 mm connector / 2.50 mm pin header
Control Interface: Direct GPIO control (A/B inputs per channel)
Operating Temperature: 0 °C to +80 °C
Board Dimensions: 20 mm × 40 mm
| Symbol | Parameter | Min | Typical | Max | Unit |
|---|---|---|---|---|---|
| VCC | Supply Voltage | 2.5 | 6 | 12 | V |
| Idd | Quiescent Current | — | 0 | 2 | µA |
| Iin | Operating Current | 200 | 350 | 500 | µA |
| IC | Continuous Current | 750 | 800 | 850 | mA |
| IMax | Peak Current | — | 1500 | 2000 | mA |
| M1_A | M1_B | A | B |
|---|---|---|---|
| H | L | H | L |
| L | H | L | H |
| L | L | L | L |
| H | H | L | L |
| M2_A | M2_B | A | B |
|---|---|---|---|
| H | L | H | L |
| L | H | L | H |
| L | L | L | L |
| H | H | L | L |
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | VCC | Motor voltage positive input |
| 2 | M2_B | Channel 2 control input B |
| 3 | M2_A | Channel 2 control input A |
| 4 | M1_B | Channel 1 control input B |
| 5 | M1_A | Channel 1 control input A |
| 6 | GND | Ground |
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | VCC | Motor voltage positive input |
| 2 | M2_B | Channel 2 control input B |
| 3 | M2_A | Channel 2 control input A |
| 4 | M1_B | Channel 1 control input B |
| 5 | M1_A | Channel 1 control input A |
| 6 | GND | Ground |
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | B | Motor output B (Channel 1) |
| 2 | A | Motor output A (Channel 1) |
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | B | Motor output B (Channel 2) |
| 2 | A | Motor output A (Channel 2) |
This repository contains both hardware and software components:
All hardware design files are licensed under Creative Commons Attribution-ShareAlike 4.0 International License.
All software and firmware are licensed under BSD 3-Clause License.
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