Measuring voltage and adjusting it is what electronics is all about so you won’t get far without friends like the Adafruit PCF8591 Quad 8-bit ADC + 8-bit DAC combo.  Analog to Digital Converters help by measuring an analog voltage and turning it into something a microcontroller like a Metro or Arduino can understand. If you’re using a single board computer like a Raspberry Pi, you might not have any other way to measure a voltage because even though they are well equipped for digital circuits, many boards of that type don’t have any pins that can measure analog voltages.
 
The PCF8591 is not the highest quality ADC/DAC - with only 8 bits of measurement, but it works well and is fairly inexpensive so for many basic uses it will work just fine.
 
Adding a PCF8591 to your electronics project will give you not one, not two, but four 8-bit analog inputs that you can use to measure voltages from. If knobs are just the thing to complete your project, just add a PCF8591 and some potentiometers and you’re ready to twist, turn, twiddle and tweak to get things just right.
 
Along with four 8-bit ADC channels, the PCF8591 comes complete with an 8-bit Digital to Analog Converter converter as well! Not only can you measure voltages, but now you can create them just as you want them. You can even use the DAC and ADC together to create an input to a circuit and measure the results with the ADC. The possibilities abound! 
 
 Wow!” you say, ”That sounds great, but surely with all that fun in one small package, I can only use one at a time.”
 
Well, my friend, I’ve got good news. On the back of each PCF8591 breakout are three jumpers that allow you to set the I2C address, allowing the use of eight PCF8591s on the same I2C bus! That’s up to a a whopping 32 channels of analog measurement and 8 channels of analog signal generation! If you do decide to go all out with your project, you won’t break the bank because the PCF8591 breakouts are reasonably priced compared to some higher-end ADCs.
 
As if 4 ADCs and one DAC in a single package weren’t enough, we’ve made it even easier to use by mounting the PCF8591's chonky SO16 surface mount package onto a breakout with standard 0.1”/2.54mm headers and SparkFun Qwiic compatible STEMMA QT connectors for the I2C bus, making it simple to integrate with your project. Using the wiring diagrams and example code on the pages that follow, you’ll be able to use our Python and Arduino libraries to easily measure as many voltages as you need (as long as that number is 32 or less).
 

 
Technical Details:
  • Product Dimensions: 25.4mm x 22.8mm x 4.6mm / 1.0" x 0.9" x 0.2"
  • Product Weight: 2.5g / 0.1oz

Package Includes:

  • 1 x Adafruit 4648 PCF8591 Quad 8-bit ADC + 8-bit DAC - STEMMA QT / Qwiic

Write a review

Please login or register to review

Adafruit 4648 PCF8591 Quad 8-bit ADC + 8-bit DAC - STEMMA QT / Qwiic

  • Brand: Adafruit
  • Product Code:Ada-4648-PCF8591
  • Reward Points:7
  • Availability:In Stock
  • रo 702.00

  • Price in reward points:740

  • 50 or more रo 614.00
  • 220 or more रo 611.00

Related Products

ADC0804 - 8-Bit MC Compatible A to D Converters

ADC0804 - 8-Bit MC Compatible A to D Converters

This is a CMOS 8-bit successive approximation interfacing A to D converters that use a differential ..

रo 160.00 रo 175.00

Adafruit 5870 MCP3421 18-Bit ADC - STEMMA QT / Qwiic

Adafruit 5870 MCP3421 18-Bit ADC - STEMMA QT / Qwiic

The Adafruit MCP3421 18-Bit ADC is a simple, inexpensive, and easy to use 18-bit, 240 SPS, single-ch..

रo 642.00

Adafruit 5811 AD5693R Breakout Board - 16-Bit DAC with I2C Interface - STEMMA QT / qwiic

Adafruit 5811 AD5693R Breakout Board - 16-Bit DAC with I2C Interface - STEMMA QT / qwiic

Which is better, less bits or more? MORE of course! So why settle for a 12-bit DAC like the MCP4725 ..

रo 1,180.00

Adafruit 4470 MCP4728 Quad DAC with EEPROM - STEMMA QT / Qwiic

Adafruit 4470 MCP4728 Quad DAC with EEPROM - STEMMA QT / Qwiic

If you've ever said to yourself, "Gee, I wish I had four 12-bit DACs that came in a single package w..

रo 809.00

Adafruit 1085 ADS1115 16-Bit ADC - 4 Channel with Programmable Gain Amplifier - STEMMA QT / Qwiic

Adafruit 1085 ADS1115 16-Bit ADC - 4 Channel with Programmable Gain Amplifier - STEMMA QT / Qwiic

For microcontrollers without an analog-to-digital converter or when you want a higher-precision ADC,..

रo 1,615.00

Adafruit 5580 MAX17048 LiPoly / LiIon Fuel Gauge and Battery Monitor - STEMMA JST PH & QT / Qwiic

Adafruit 5580 MAX17048 LiPoly / LiIon Fuel Gauge and Battery Monitor - STEMMA JST PH & QT / Qwiic

Low cost Lithium Polymer batteries have revolutionized electronics - they're thin, they're light, th..

रo 642.00

Adafruit 4538 NAU7802 24-Bit ADC - STEMMA QT / Qwiic

Adafruit 4538 NAU7802 24-Bit ADC - STEMMA QT / Qwiic

If you are feeling the stress and strain of modern life a Wheatstone bridge and you want to quantify..

रo 642.00

Adafruit 5836 ADS7830 8-Channel 8-Bit ADC with I2C - STEMMA QT / Qwiic

Adafruit 5836 ADS7830 8-Channel 8-Bit ADC with I2C - STEMMA QT / Qwiic

Many microcontrollers have ADCs these days, for reading analog/resistive sensors like potentiometers..

रo 642.00

Adafruit 5974 HX711 24-bit ADC for Load Cells / Strain Gauges

Adafruit 5974 HX711 24-bit ADC for Load Cells / Strain Gauges

f you are feeling the stress and strain of modern life a Wheatstone bridge and you want to quantify ..

रo 1,074.00

Tags: PCF8591, STEMMA, Qwiic

The product is currently Out-of-Stock. Enter your email address below and we will notify you as soon as the product is available.

Name
Email
Phone
Comments