Hi Welcome to QKits


0 $0.00

You have no items in your shopping cart.


  Shipping Logos
       Celebrating 21 Years
                 A sure sign of Spring!
  Free Shipping Image

16-Channel 12-bit PWM/Servo Shield - I2C interface image Zoom

16-Channel 12-bit PWM/Servo Shield - I2C interface

Arduino Ready PWM and Servo driver shield, works with Uno, Leo, Mega, ADK,

Availability: In stock
Assembly Required: Yes



Assembly Required!
Product Description


    Using only two I2C pins, control 16 free-running PWM outputs! You can even stack up 62 shields to control up to 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 don't conflict (this shield has address 0x40)

    There's an I2C-controlled PWM driver with a built in clock. That means that, unlike the TLC5940 family, you do not need to continuously send it signal tying up your microcontroller, its completely free running!
    5V compliant, which means you can control it from a 3.3V Arduino and still safely drive up to 6V outputs (this is good for when you want to control white or blue LEDs with 3.4+ forward voltages)
    6 address select pins so you can stack up to 62 of these on a single i2c bus, a total of 992 outputs - that's a lot of servos or LEDs
    Adjustable frequency PWM up to about 1.6 KHz
    12-bit resolution for each output - for servos, that means about 4us resolution at 60Hz update rate
    Configurable push-pull or open-drain output

  1. Terminal block for power input (or you can use the 0.1" breakouts on the side)
  2. Reverse polarity protection on the terminal block input
  3. Green and red power-good LEDs
  4. 3 pin connectors in groups of 4 so you can plug in 16 servos at once (Servo plugs are slightly wider than 0.1" so you can only stack
  5. 4 next to each other on 0.1" header
  6. Stackable design. You'll need to pick up stacking headers and right angle 3x4 headers in order to stack on top of this shield without the servo connections getting in the way.
  7. A place to put a big capacitor on the V+ line (in case you need it)
  8. 220 ohm series resistors on all the output lines to protect them, and to make driving LEDs trivial
  9. Solder jumpers for the 6 address select pins
  10. A lot of extra space remaining? Let's turn it into a prototyping area. You get a 5x20 proto area for any extra wiring you'd like to add
    This product comes with a fully tested and assembled shield as well as 4 pieces of 3x4 male straight header (for servo/LED plugs), a 2-pin terminal block (for power) and a stick of 0.1" header so you can plug into an Arduino. A little light soldering will be required to assemble and customize the board by attaching the desired headers. If you want to use right-angle 3x4 headers, we also carry those. Servos and Arduino not included - but we do sell the Arduino line and different servos here.


    Dimensions (no headers or terminal block) 2.1" x 2.7" x 0.1" (54mm x 70mm x 3mm)
    This board/chip uses I2C 7-bit addresses between 0x60-0x80, selectable with jumpers.

    Revision History:

    Dec 3, 2014 - we updated the polarity protection transistor to an AOD417 for better current handling, it is otherwise identical in code and size.

Additional Information

    Additional Information

    SKU ARDU1411
Product Tags

    Use spaces to separate tags. Use single quotes (') for phrases.

CMS tab