IIC Interface - PCA9685 PWM/servo driver for arduino or Raspberry pi Shield Module It's 5V compatible, which means you can control it from a 3.3V microcontroller while safely driving outputs up to 6V (this is useful for controlling white LEDs or blue with 3.4+ forward voltage)6 address select pins allowing up to 62 of them to be wired on a single i2c bus, for a total of 992 outputsPWM adjustable frequency up to approximately 1. 6KHz; configurable push-pull or open-drain outputManufacturer12-bit resolution for each output - for servos this means approximately 4us of resolution at 60HzFeature:An I2C-controlled PWM driver with a built-in clock. This means that, unlike the TLC5940 family, you don't need to constantly send it the signal that is blocking your microcontroller, it's completely free! 1.Output enable pin to quickly disable all outputs2. Terminal block for power input (or you can use the 0.1" terminal block on the side)3. Reverse polarity protection at terminal block input4. Good power green LED5. 3-pin connectors in groups of 4 allow you to plug in 16 servos at once (servo sockets are slightly wider than 0.1", so you can only stack 4 on a 0.1"6 connector. "Chainable" design7. A spot to place a large capacitor on the V+8 line. 330 ohm series resistors on all output lines to protect them and make driving LEDs trivial9. Solder jumpers for the 6 address select pinsPackage:1/16 channel PWM/servo driver IIC interface Note: The data are all manual measurement, please allow 1-3cm error, Due to the light and display difference, there will be some color difference, depending on the physical item received.