PCF8591 AD/DA Conversion Module – Digital & Analog Converter
PCF8591 AD/DA Conversion Module – Digital & Analog Converter
PCF8591 AD/DA Conversion Module – Versatile Digital/Analog Converter
The PCF8591 AD/DA Conversion Module is a compact, high-performance analog-to-digital and digital-to-analog converter designed for electronics hobbyists, engineers, and students working with microcontrollers and embedded systems. Whether you're building a temperature sensor circuit, measuring light intensity, or experimenting with analog signal processing, this module delivers reliable and precise results every time.
Featuring the popular PCF8591 IC, this SMD-packaged module communicates via the I²C interface, making it straightforward to integrate with Arduino, Raspberry Pi, and other popular development platforms. With four analog input channels and one analog output channel, it opens up a wide range of sensing and signal generation possibilities for your projects.
Made in Mainland China.
Key Features
- 4-Channel Analog Input / 1-Channel Analog Output: Simultaneously read multiple analog signals and generate a DAC output — ideal for multi-sensor setups.
- I²C Communication Interface: Simple two-wire protocol (SDA + SCL) for easy integration with Arduino, Raspberry Pi, STM32, and more.
- 8-Bit Resolution: Provides 256-step resolution for smooth and accurate analog readings and output generation.
- On-Board Sensors: Includes a photoresistor (for illumination measurement) and a thermistor (for temperature measurement) for instant hands-on experimentation.
- On-Board Potentiometer: Allows manual analog input signal adjustment directly on the module.
- SMD Package: Compact form factor fits neatly into breadboards and custom PCB layouts.
- Wide Compatibility: Works seamlessly with 3.3V and 5V systems.
- Condition: Brand new.
Specifications
- IC: PCF8591
- Interface: I²C
- ADC Resolution: 8-bit (0–255)
- Analog Input Channels: 4
- Analog Output Channels: 1
- Package: SMD
- Quantity: 1 Module
- Origin: Mainland China
What Can You Do With It?
This module is perfect for a wide variety of DIY electronics and learning projects:
- Temperature monitoring with the on-board thermistor
- Light level detection with the built-in photoresistor
- Analog joystick or potentiometer reading
- DAC waveform generation (sine, sawtooth, triangle waves)
- General-purpose analog signal interfacing for microcontrollers
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Frequently Asked Questions
Q: What microcontrollers are compatible with the PCF8591 AD/DA Conversion Module?
A: The PCF8591 module uses the standard I²C protocol, making it compatible with a wide range of microcontrollers and single-board computers including Arduino (Uno, Nano, Mega), Raspberry Pi, STM32, ESP8266, ESP32, and virtually any platform that supports I²C communication.
Q: How many analog channels does the PCF8591 module support?
A: The PCF8591 AD/DA module supports 4 analog input channels and 1 analog output channel, all accessible via the I²C two-wire interface. This makes it ideal for reading multiple sensors simultaneously while also outputting a DAC signal.
Q: Can I use this module for temperature and light measurement right away?
A: Yes! The PCF8591 module comes with an on-board thermistor for temperature measurement and a photoresistor for illumination/light level measurement, so you can start experimenting immediately without additional components.
Q: What voltage does this module operate on?
A: The PCF8591 conversion module is compatible with both 3.3V and 5V supply voltages, making it flexible for use with a wide variety of development boards and embedded systems.