<p>Product introduction:This expansion board is a full-featured robot expansion version on market that can support multiple motors\/stepper motors\/servos (Stepper\/Motor\/Servo) at the same time,and can be stacked to expand more control interfaces.It's especially fit for applications such as DIY robots,smart cars,robotic arms, \/tilts,etc.The control interface simply adopts the I2C interface and is compatible with 3.3\/5V levels,so it's also fit for other development boards on market.</p> <p>note: Due to different batches, the appearance, color, and printed words of the product , which does not affect its use.</p> <p>Features: </p> <p>1. Single power supply, the normal working power supply voltage range is 5V~12V; (Please select the correct input power supply voltage and current according to the motor control voltage you control)</p> <p>2. Complete data input\/output through the I2C bus of for the , </p> <p>3. One I2C interface, compatible with 5V level, can be controlled by for or other development boards</p> <p>4. One I2C interface can be connected to sensors to expand applications</p> <p>5. The address of the expansion board is determined by 4 address pins, and a maximum of 16 expansion boards can be used at the same time.</p> <p>6. Supports 16 PWM channel outputs and can control 16 servos or LED lights.</p> <p>7. 12-bit resolution, adjustable PWM frequency up to 1.6KHz, configurable push-pull or open-drain output</p> <p>8. Supports 4-way servo interface and 3P standard interface to facilitate connection of servo and LED lights.</p> <p>9. Supports 2-channel 6V~12V stepper motors, Supports 4-channel 6V~12V reduction motors</p> <p>10. Support infrared receiving function for convenient infrared control</p> <p>spec: </p> <p>Working voltage: 5V~12V</p> <p>Interface: I2C</p> <p>interface description: </p> <p>1. 4-way servo interface (#0, #1, #14, #15)</p> <p>2. 4-way motor interface (M1, M2, M3, )</p> <p>3. 2-way stepper motor face (M1+M2, M3+)</p> <p>4. I2C interface</p> <p>size: 65 x 56 x 21mm</p> <p>Material: PCB</p> <p>colour: blue</p> <p>Package Contents: </p> <p>1 x Expansion Board</p> <p>Only the above package content, other products are not included.</p> <p>Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.</p>