PCF8591 ADC DAC Converter Module 8 Bit

Description of PCF8591 ADC DAC Converter Module 8 Bit The PCF8591 Module is a breakout/prototype board based on the PCF8591 IC, a single-chip, low-power CMOS data acquisition device. It integrates four analog inputs, one analog output, and an I²C bus interface, making it ideal for applications requiring analog-to-digital and digital-to-analog conversion. With three address pins (A0, A1, A2), up to eight devices can be connected on the same I²C bus without additional hardware. The device includes analog input multiplexing, a track-and-hold function, an 8-bit ADC, and an 8-bit DAC, supporting flexible data acquisition and control applications. This module also integrates a photoresistor, thermistor, and adjustable potentiometer for real-time sensing of light, temperature, and voltage. Key Features Wide operating voltage range (2.5V – 6V) with low standby current. I²C serial communication with 3 hardware address pins (A0–A2), supporting up to 8 devices on the same bus. 4 analog input channels, configurable as single-ended or differential, plus 1 analog output (DAC). 8-bit ADC and DAC resolution with built-in track-and-hold circuit for stable sampling. Supports 0–5V external analog signal acquisition for versatile measurements. Integrated photoresistor for light detection and thermistor for temperature sensing. Onboard potentiometer (0–5V adjustable) for voltage testing and calibration. Power indicator LED and DAC output indicator LED for real-time status monitoring. Specifications Parameter Details IC Model PCF8591 Supply Voltage 2.5V – 6V (module: 3.3V–5V) ADC Resolution 8-bit DAC Resolution 8-bit Analog Inputs 4 channels (AIN0–AIN3) Analog Output 1 channel (AOUT) Interface I²C (SCL, SDA) Onboard Sensors Photoresistor, Thermistor, Potentiometer PCB Size 36 × 23 × 1.6 mm Indicators Power LED, DAC Output LED PCF8591 Module Interface Pin / Jumper Function AOUT DAC output (analog voltage output) AIN0 Analog input channel 0 AIN1 Analog input channel 1 AIN2 Analog input channel 2 AIN3 Analog input channel 3 SCL I²C clock line (connect to MCU IO pin) SDA I²C data line (connect to MCU IO pin) GND Ground VCC Power supply (3.3V – 5V) P4 Jumper Enables thermistor input P5 Jumper Enables photoresistor input P6 Jumper Enables 0–5V adjustable voltage input Applications Sensor interfacing (light, temperature, voltage) Data acquisition systems Robotics and automation projects Embedded systems requiring ADC/DAC functions Microcontroller development & prototyping (Arduino, ESP32, Raspberry Pi, etc.) Packaging Details 1 × PCF8591 ADC/DAC Module with Onboard Sensors 1 × Female-to-Female Jumper Wire Set PCF8591 ADC DAC Converter Module - Frequently Asked Questions What is the PCF8591 Module used for? The PCF8591 Module is used for analog-to-digital (ADC) and digital-to-analog (DAC) conversion. It enables microcontrollers to read analog signals (such as light, temperature, or voltage) and also output analog voltages. How many channels does the PCF8591 Module support? It provides 4 analog input channels (AIN0–AIN3) and 1 analog output channel (AOUT). Can I use multiple PCF8591 Modules on the same I²C bus? Yes, up to 8 modules can be connected by configuring the 3 hardware address pins (A0, A1, A2). What sensors are included on the PCF8591 Module? It integrates a photoresistor (light sensor), a thermistor (temperature sensor), and a potentiometer (voltage adjustment). What is the operating voltage range of the PCF8591 Module? The module operates with a supply voltage of 3.3V to 5V, while the IC itself supports a range of 2.5V to 6V. What is the resolution of the ADC and DAC? Both the ADC and DAC have 8-bit resolution, which provides 256 discrete levels for conversion. Is the PCF8591 Module compatible with Arduino and Raspberry Pi? Yes, it works seamlessly with Arduino, ESP32, Raspberry Pi, and other microcontrollers that support I²C communication. What is the function of the onboard jumpers (P4, P5, P6)? P4: Enables thermistor input P5: Enables photoresistor input P6: Enables adjustable potentiometer voltage input Does the PCF8591 Module include status indicators? Yes, it has a power LED and a DAC output LED that lights up depending on the output voltage level. Attention  Note: This item is non-returnable. If this item arrives damaged or is not functioning properly, please don't hesitate to contact us to determine if further action is required. Need Help? Our engineers are available to assist you. If you have any queries, please leave a comment below or call 09678110110 from 09:00 am to 06:00 pm (7 days a week). You can also reach us via WhatsApp or Facebook Inbox