Name: PCA9685 I2C PWM Servo Driver Shield 16- Channel 12-bit
Brand: Sialkot
SKU: R9C1-6
Price: 750.00 PKR
Availability: InStock

The PCA9685 I2C PWM Servo Driver Shield 16- Channel 12-bit is a 16-channel I2C-bus controlled LED controller optimized for RGBA color backlighting applications.

Each LED output has individual 12-bit resolution (4096 steps) PWM controller with a fixed frequency. The controller operates at a programmable frequency from a typical 24 Hz to 1526 Hz with a duty cycle that is adjustable from 0% to 100% so the LED can be set to output a specific brightness.

All outputs are set to the same PWM frequency. With the PCA9685 as the master chip, the 16-channel 12-bit PWM Servo Driver only needs 2 pins to control 16 servos, thus greatly reducing the occupant I/Os.

Moreover, it can be connected to 62 driver boards at most in a cascade way, which means it will be able to control 992 servos in total.

PCA9685 I2C PWM Servo Driver Shield 16- Channel 12-bit can help a lot when there are insufficient PWM output pins for the MCU in your project.

The only condition is that the main control chip supports I2C communication, which means enabling the communication between the chip and PCA9685, so as to control multiple servos simultaneously.

Features: –

Contains an I2C-controlled PWM driver with a built-in clock. It means, unlike the TLC5940 family, you do not need to continuously send it signals tying up your microcontroller; it’s completely free running!
5V compliant, which means you can control it from a 3.3V microcontroller, which is good when you want to control white or blue LEDs with a 3.4V+ forward voltage
Supports using only two pins to control 16 free-running PWM outputs – you can even chain up 62 breakouts to control up to 992 PWM outputs.
3 pin connectors in 4 groups, so you can plug in 16 servos at one time (Servo plugs are slightly wider than 0.1″ so you can only stack 4 adjacent ones on 0.1″-hole female headers.
12-bit resolution for each output – for servos, that means about 4us resolution at an update rate of 60Hz.
Size: 62 x 26 mm

PCA9685 I2C PWM Servo Specifications: –

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.