ACROBOTIC PCF8591 8-bit ADC DAC Analog Digital Converter Breakout Board for Arduino Raspberry Pi ESP8266

As you pursue more advanced tinkering projects, especially those involving analog sensors (e.g., thermistors, photoresistors, microphones), it's easy to run out of Analog Input channels on typical microcontroller development boards like the Arduino UNO, ESP8266 NodeMCU, or single-board computers like the Raspberry Pi. Moreover, most of these entry-level boards lack true Analog Output channels. Although you do have the option of using a more complex board for your project, the PCF8591 offers an inexpensive, easy-to-use module for expanding the available Analog Input/Output channels on any of these boards! The PCF8591 8-bit A/D and D/A converter module operates on 2.5~6V so it can be used with most popular microcontroller development boards (e.g., Arduino UNO, Arduino DUE) or single-board computer (e.g. Raspberry Pi, BeagleBone) at either 3.3V or 5V voltage logic levels. The ADC on the PCF8591 has a resolution of 8-bits, so it can read up to 4 independent signal values between 0V and Vref in increments of Vref/255. Similarly, the 8-bit DAC can generate one signal whose values range between 0V~Vref (reference voltage) in 255 steps. We have also included on this board a temperature and a light sensor that are selectable using pin jumpers; these work great for testing out the code for acquiring Analog Input measurements from physical sensors! Features: 3.6×2.3cm breakout PCB with pin headers installed for accessing the PCF8591 I/O! Sturdy (1.6mm), blue PCB with a 4-pin header on one side (Vdd, Vss, SDA, and SCL) and a 5-pin header on the other (Ain0~3 and Aout0) 4×Female/Female jumper wires included for rapid prototyping! We have written useful guides for getting you started with the PCF8591, a single-chip, single-supply low-power 8-bit CMOS data acquisition device: ESP8266: http://learn.acrobotic.com/tutorials/