815

815 is a 16-channel 12bit PWM/servo driver. It's an I²C-controlled PWM driver with a built-in clock. That means that, unlike the TLC5940 family, users do not need to continuously send it signal tying up your microcontroller, it's completely free running. It is 5V compliant, which means you can control it from a 3.3V microcontroller, with 3.3V logic pull-ups, and still safely sink up to 5.5V outputs (this is good for when you want to control common-anode white or blue LEDs with 3.4+ forward voltages).

• 12-bit resolution for each output - for servos, that means about 4us resolution at 60Hz update rate
• Configurable push-pull or open-drain output
• Output enable pin to quickly disable all the outputs
• This board/chip uses I²C 7-bit address between 0x40-0x7F, selectable with jumpers
• Dimensions (no headers or terminal block) 2.5" x 1" x 0.1"

Contents

PWM/servo driver board, 4 pieces of 3x4 male straight header (for servo/LED plugs), 2-pin terminal block (for power), and a piece of 6-pin 0.1" header (to plug into a breadboard).