Write your Feed Back
If you want to make a robot which has lots of moving parts or if you want to control too many LEDs with PWM outputs, then the limited PWM outputs of your microcontroller would be a big problem for you. To overcome this problem, the only thing you should do is to get a 16-Channel 12-Bit PWM/Servo Driver.
You can control 16 free-running PWM outputs with 16-Channel 12-Bit PWM/Servo Driver using only 2 pins. You can even chain up 62 breakouts to control up to 992 PWM outputs.
It’s an I2C-controlled PWM driver with a built-in clock. That means you do not need to continuously send it to signal to tie up your microcontroller, it is completely free running!
Specifications
| Driver IC | PCA9685 |
| Length (mm) | Mar-00 |
| Width (mm) | 12:00 AM |
| Height (mm) | Jan-00 |
| Weight (gm) | 10 |
| Shipment Weight | 0.015 kg |
Features :
- Adjustable frequency PWM up to about 1.6 KHz
- 12-bit resolution for each output – for servos, that means about 4us resolution at a 60Hz update rate
- Configurable push-pull or an open-drain output
- The output enable pin to quickly disable all the outputs
- Terminal block for power input
- Reverse polarity protection on the terminal block input
- Green power-good LED
- 3 pin connectors in groups of 4 so you can plug in 16 servos at once
- Chainable design
- A spot to place a big capacitor on the V+ line
- 220-ohm series resistors on all the output lines to protect them, and to make driving LEDs trivial.
- This board/chip uses I2C 7-bit address between 0x60-0x80, selectable with jumpers.
Package Includes :
- 1 x 16-Channel 12-bit PWM/Servo Driver
