PCF8591 ADC/DAC Converter Module

PCF8591 ADC/DAC Converter Module is a compact and versatile 8-bit analog-to-digital and digital-to-analog conversion module designed for microcontroller and embedded system applications. Based on the popular PCF8591 IC, this module enables easy interfacing of analog sensors and control of analog output devices using a simple I2C communication protocol.

Widely used with platforms such as Arduino, Raspberry Pi, ESP8266, ESP32, and other microcontrollers, the PCF8591 module is an ideal solution for projects requiring multiple analog inputs or an analog output when onboard ADC or DAC resources are limited. Its low power consumption, small footprint, and ease of integration make it suitable for both professional embedded systems and educational or DIY electronics projects.

Key Features of PCF8591 ADC/DAC Converter Module

• 4-Channel 8-Bit ADC
  Provides four independent analog input channels for reading sensor data such as temperature, light, pressure, or potentiometer values.

• 1-Channel 8-Bit DAC Output
  Includes a built-in DAC for generating analog voltage outputs for control, signal generation, and testing applications.

• I2C Communication Interface
  Supports standard I2C protocol, allowing easy connection using only two wires (SDA and SCL).

• Wide Microcontroller Compatibility
  Works seamlessly with Arduino, Raspberry Pi, STM32, ESP32, ESP8266, and other I2C-enabled controllers.

• Configurable I2C Address
  Address pins allow multiple PCF8591 modules to operate on the same I2C bus.

• Onboard Analog Sources
  Many modules include a potentiometer, LDR, thermistor, and LED, enabling quick testing without external components.

• Compact & Breadboard-Friendly Design
  Small PCB size with clearly labeled pins for quick prototyping and easy installation.

Technical Specifications – PCF8591 Module

• IC Used: PCF8591

• ADC Resolution: 8-bit (0–255 digital output)

• Number of ADC Channels: 4

• Number of DAC Channels: 1

• Communication Protocol: I2C (Two-wire interface)

• Operating Voltage: 2.5 V to 6 V

• Typical Operating Voltage: 5 V

• I2C Addresses: 0x48 to 0x4F (configurable)

• Input Voltage Range: 0 V to VCC

• DAC Output Voltage: 0 V to VCC

• Power Consumption: Low power operation

• PCB Mounting: Through-hole / header pins

• Dimensions: Compact module design

Note: Module features and onboard components may vary slightly depending on manufacturer.

Applications of PCF8591 ADC/DAC Converter Module

The PCF8591 ADC/DAC Converter Module is suitable for a wide range of analog sensing and control applications, including:

• Sensor Interfacing
  Read data from analog sensors such as temperature sensors, light sensors (LDR), gas sensors, and potentiometers.

• Microcontroller Expansion
  Add extra analog inputs to microcontrollers with limited ADC channels or no DAC output.

• Raspberry Pi Projects
  Ideal for Raspberry Pi, which lacks native analog input, enabling sensor-based projects.

• Signal Generation & Control
  Use the DAC output for LED brightness control, motor speed reference, audio signal generation, or voltage control applications.

• Educational & Training Kits
  Commonly used in electronics labs and academic projects for teaching ADC and DAC concepts.

• IoT & Embedded Systems
  Integrates easily into IoT devices for monitoring and controlling analog parameters.

• DIY & Prototyping
  Perfect for hobbyists building quick prototypes and proof-of-concept designs.

Why Choose the PCF8591 ADC/DAC Converter Module?

The PCF8591 module offers a cost-effective and reliable solution for handling analog inputs and outputs in digital systems. Its simple I2C interface minimizes wiring complexity, while its combination of ADC and DAC functionality provides exceptional flexibility. The presence of onboard test components further reduces development time, making it a preferred choice for engineers, educators, and makers.

Whether you are developing a sensor monitoring system, expanding your microcontroller’s capabilities, or learning analog-to-digital conversion, the PCF8591 ADC/DAC Converter Module delivers dependable performance and ease of use in a compact form factor.

Package Includes:

1 x PCF8591 ADC/DAC Converter Module

FAQ

1. Where can we buy this PCF8591 ADC/DAC Converter Module?

This product is available online https://aiiottech.in/product/pcf8591-adc-dac-converter-module/ and also available at our store in Pudupakkam/Kelambakkam, Chennai-603103

2. When can I get this PCF8591 ADC/DAC Converter Module after placing the order?

RGRJ AIIoT TECHNOLOGIES will immediately ship and deliver the product within 1-3 working days.

Video Link: Best PCF8591 Module: 2025’s Top AD/DA Conversion!