24-Channel 12-bit PWM LED Driver - SPI Interface - TLC5947

This chip can control 24 separate channels of 12-bit PWM output for LED control, this board is not good for driving servos. For servos use this servo driver.

Features:

• SPI controlled PWM/LED driver board
• 24 Channel
• Constant-current & open drain outputs
• Input Voltage: 5V - 30V
• Uses SPI to communicate
• 3 pins are required to interface:
  • Data
  • Clock
  • Latch
• Boards are chainable
• Output Enable (OE) allows you to turn off all outputs at once
• Max Daisy-chaining: no maximum, just supply enough power and you can chain as many as necessary
• Constant current so LEDs won't flicker or burn out
• Current level: 15mA per channel (can be adjusted by soldering a different resistor
• Resolution: 12 bit

• Arduinio Hookup:
  
  • LAT: Arduino D6
  • OE: no connection
  • CLK: Arduino D5
  • DIN: Arduino D4
  • GND: Arduino GND
  • V+: Arduino VIN or external power supply