16-channel 12-bit PWM and Servo shield with I2C interface for Arduino UNO R3

Ideal for making a robot with many servos such as a Hexpod Walker. Or maybe you want to control a lot of LEDs with precise PWM output. Then you’ll find that the Arduino has too few PWM outputs, or that they conflict with another shield! What now? You could give up OR you could use this handy PWM and servo driver shield. This shield works with all Arduinos that support shields.
The chip on this shield is perfect for the job. By using only two I2C pins, you can control 16 independent PWM outputs. You can even stack 62 shields to control a total of no less than 992 PWM outputs. Because I2C is a shared bus, you can also connect other I2C devices and sensors to the SCL/SDA pins as long as their addresses do not conflict.

• I2C controlled PWM driver with a built-in clock. That means, unlike the TLC5940 family, your microcontroller does not have to control it all the time. It runs completely independently.
• Suitable for 5V, but you can also control it from a 3.3V ESP32, ESP8266, or Wemos.
• I2C address can be set via 6 pins.
• Adjustable PWM frequency up to about 1.6kHz.
• 12-bit resolution for each output – for servos, this means a 4µs resolution at an update rate of 60Hz.
• Configurable push-pull or open-drain output

This shield features:

• Terminal blocks for power input, or you can use the breakout on the side.
• Protection against incorrect connection to the terminal blocks.
• 3-pin connectors in groups of 4 so you can connect 16 servos in one go.
• Stackable design.
• Space for a large capacitor on the V+ line (if you need it).
• 220 Ohm resistors on all outputs to protect them and to make driving LEDs easy.

The pins are pre-soldered as shown in the image.

Dimensions
Length: 6.8cm
Width: 5.3cm
Height: 2cm