PCA9685 16-Channel 12-bit PWM Servo Driver – I2C interface
16 Channel PWM Servo Driver 12-Bit I2C Interface – PCA9685 uses the I2C method, so only four lines can be connected to the Arduino device:
“Classic” Arduino pin mode:
- + 5v -> VCC
- GND -> GND
- Analog 4 -> SDA
- Analog 5 -> SCL
- Old Mega pin way:
- + 5v -> VCC
- GND -> GND
- Digital 20 -> SDA
- Digital 21 -> SCL
₨900
Compare16 Channel PWM Servo Driver 12-Bit I2C Interface – PCA9685 for Arduino Raspberry Pi an i2c-controlled PWM drive and a built-in clock. This means that it and the TLC5940 series are very different. You do not need to send signals to occupy your microcontroller constantly
It is 5V compatible, which means you can also use 3.3V MCU control and safely drive to 6V output (when you want to control white or blue LEDs with 3.4+ positive voltage is also possible)
Ready to output 12 resolution of the stepper motor, which means that at 60Hz refresh rate, it can reach 4us resolution
About 1.6Khz Adjustable Frequency PWM output
Output Enable pin to disable all output quickly
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