16 Channels 12-bit PWM/Servo Driver I2C Interface PCA9685

Specifications:

Model Number: PCA9685
Channels: 16 independent PWM outputs
Resolution: 12-bit (4096 steps)
Control Interface: I2C (up to 1 MHz)
Operating Voltage: 2.3V to 5.5V
Output Voltage: Same as VCC
Current per Output: 25mA (sink/source)
I2C Address: Configurable from 0x40 to 0x7F (64 possible addresses)
Clock Frequency: Internal 25 MHz oscillator
Board Dimensions: Approximately 60mm x 25mm

Special Features:

16 Independent PWM Outputs: Control up to 16 servos or LEDs with precise PWM signals, making it ideal for robotics and lighting projects.
12-bit Resolution: Provides fine control over the duty cycle, enabling smooth transitions and precise control.
I2C Interface: Allows for simple two-wire communication, supporting multiple devices on the same bus.
Adjustable Frequency: PWM frequency can be adjusted from 24 Hz to 1526 Hz, making it versatile for various applications.
Stackable Design: Multiple boards can be chained together using I2C, allowing for control of up to 992 PWM outputs on a single I2C bus.
Integrated Power-on Reset (POR): Ensures reliable startup and operation.
Clock Input Option: External clock input pin available for synchronization with other devices.

Original price was: ৳ 700.00.Current price is: ৳ 525.00.

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Specification

Overview

Wiring Connections:

Power and Ground:
- VCC: Connect to 2.3V to 5.5V power supply
- GND: Connect to Ground
I2C Communication:
- SCL: Connect to SCL pin on the microcontroller
- SDA: Connect to SDA pin on the microcontroller
Servo/LED Outputs:
- Outputs: 16 PWM channels (labeled 0 to 15) for connecting servos or LEDs
External Power:
- V+: Connect to external power source if servos/LEDs require higher current

Power:

Operating Voltage: 2.3V to 5.5V (compatible with both 3.3V and 5V systems)
Current Consumption: Minimal for control logic, but external power may be required for connected devices
External Power Option: Provides the flexibility to power servos or LEDs directly from the board without overloading the microcontroller

Input and Output:

Input: I2C commands from a microcontroller to configure and control the PWM outputs
Output: 16 PWM signals for controlling servos, LEDs, or other PWM-compatible devices

Physical Characteristics:

Size: Compact board, approximately 60mm x 25mm, with mounting holes for easy installation
Weight: Lightweight, suitable for embedded systems and robotics
Pin Layout: Clearly labeled pins for power, ground, I2C communication, and PWM outputs

Technical Specifications:

PWM Frequency Range: Adjustable from 24 Hz to 1526 Hz
Duty Cycle Range: 0% to 100% in 4096 steps
Output Current: Each channel can source/sink up to 25mA, sufficient for most LEDs and small servos
Operating Temperature: -40°C to +85°C, making it suitable for various environmental conditions
Input Clock Frequency: Internal 25 MHz, with an option for an external clock

Additional Features:

Versatile Application: Ideal for controlling multiple servos in robotic arms, animatronics, or LED lighting systems requiring precise PWM control.
Stackable Design: Up to 62 additional PCA9685 boards can be daisy-chained on the same I2C bus, allowing for extensive expansion.
Built-in Oscillator: No need for external timing components, simplifying circuit design.
I2C Address Configuration: Allows flexibility in assigning unique addresses to each board in a multi-board setup.

How to Use:

Step 1: Solder header pins to the board if they are not pre-soldered.
Step 2: Mount the PCA9685 board securely using the provided mounting holes.
Step 3: Connect the VCC pin to your microcontroller’s power supply, ensuring compatibility with the board’s operating voltage.
Step 4: Connect the GND pin to the ground of your microcontroller.
Step 5: Connect the SCL and SDA pins to your microcontroller’s corresponding I2C pins.
Step 6: Connect servos or LEDs to the PWM output pins (0 to 15).
Step 7: If required, connect an external power source to the V+ pin to power the connected servos/LEDs.
Step 8: Upload or write code to your microcontroller that initializes the PCA9685 and sets the desired PWM values for each channel.
Step 9: Adjust the PWM frequency as needed by writing the appropriate value to the register via I2C commands.
Step 10: Monitor the operation and adjust settings as needed for your specific application.

The 16 Channels 12-bit PWM/Servo Driver PCA9685 is a powerful and versatile module, perfect for any project requiring precise control of multiple PWM devices. Whether you’re building a robot, creating an LED display, or any other PWM-related project, this module simplifies the process with its easy-to-use I2C interface and flexible design.