Adafruit PCF8591 Quad 8-bit ADC + 8-bit DAC
Measuring voltage and adjusting it is what electronics is all about so you wonāt get far without friends like the Adafruit PCF8591 Quad 8-bit ADC + 8-bit DAC combo.Ā
Analog toĀ DigitalĀ Converters help by measuring an analog voltage and turning it into something a microcontroller like a Metro or ArduinoĀ can understand. If youāre 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 donāt 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, butĀ fourĀ 8-bit analog inputsĀ 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 youāre ready to twist, turn, twiddle and tweak to get thingsĀ just right.
Along with four 8-bit ADC channels, the PCF8591 comes complete with an 8-bitĀ Digital toĀ AnalogĀ Converter converter as well! Not only can you measure voltages, but now you canĀ createĀ 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!Ā
Ā Wow!āĀ you say,Ā āThat sounds great, but surely with all that fun in one small package, I can only use one at a time.ā
Well, my friend, Iāve got good news. On the back of each PCF8591 breakout are three jumpers that allow you to set the I2C address, allowing the use ofĀ eight PCF8591s on the same I2C bus!Ā Thatās up to a a whoppingĀ 32 channelsĀ of analog measurement andĀ 8 channelsĀ of analog signal generation! If you do decide to go all out with your project, you wonāt 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 werenāt enough, Adafruit have made it even easier to use by mounting the PCF8591's chonky SO16 surface mount package onto a breakout with standard 0.1ā/2.54mm headers andĀ SparkFun QwiicĀ compatibleĀ STEMMA QTĀ 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, youāll be able to use theĀ PythonĀ andĀ ArduinoĀ librariesĀ 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
Original: $7.03
-65%$7.03
$2.46More Images
Adafruit PCF8591 Quad 8-bit ADC + 8-bit DAC
Measuring voltage and adjusting it is what electronics is all about so you wonāt get far without friends like the Adafruit PCF8591 Quad 8-bit ADC + 8-bit DAC combo.Ā
Analog toĀ DigitalĀ Converters help by measuring an analog voltage and turning it into something a microcontroller like a Metro or ArduinoĀ can understand. If youāre 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 donāt 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, butĀ fourĀ 8-bit analog inputsĀ 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 youāre ready to twist, turn, twiddle and tweak to get thingsĀ just right.
Along with four 8-bit ADC channels, the PCF8591 comes complete with an 8-bitĀ Digital toĀ AnalogĀ Converter converter as well! Not only can you measure voltages, but now you canĀ createĀ 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!Ā
Ā Wow!āĀ you say,Ā āThat sounds great, but surely with all that fun in one small package, I can only use one at a time.ā
Well, my friend, Iāve got good news. On the back of each PCF8591 breakout are three jumpers that allow you to set the I2C address, allowing the use ofĀ eight PCF8591s on the same I2C bus!Ā Thatās up to a a whoppingĀ 32 channelsĀ of analog measurement andĀ 8 channelsĀ of analog signal generation! If you do decide to go all out with your project, you wonāt 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 werenāt enough, Adafruit have made it even easier to use by mounting the PCF8591's chonky SO16 surface mount package onto a breakout with standard 0.1ā/2.54mm headers andĀ SparkFun QwiicĀ compatibleĀ STEMMA QTĀ 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, youāll be able to use theĀ PythonĀ andĀ ArduinoĀ librariesĀ 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
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Product Information
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Description
Measuring voltage and adjusting it is what electronics is all about so you wonāt get far without friends like the Adafruit PCF8591 Quad 8-bit ADC + 8-bit DAC combo.Ā
Analog toĀ DigitalĀ Converters help by measuring an analog voltage and turning it into something a microcontroller like a Metro or ArduinoĀ can understand. If youāre 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 donāt 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, butĀ fourĀ 8-bit analog inputsĀ 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 youāre ready to twist, turn, twiddle and tweak to get thingsĀ just right.
Along with four 8-bit ADC channels, the PCF8591 comes complete with an 8-bitĀ Digital toĀ AnalogĀ Converter converter as well! Not only can you measure voltages, but now you canĀ createĀ 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!Ā
Ā Wow!āĀ you say,Ā āThat sounds great, but surely with all that fun in one small package, I can only use one at a time.ā
Well, my friend, Iāve got good news. On the back of each PCF8591 breakout are three jumpers that allow you to set the I2C address, allowing the use ofĀ eight PCF8591s on the same I2C bus!Ā Thatās up to a a whoppingĀ 32 channelsĀ of analog measurement andĀ 8 channelsĀ of analog signal generation! If you do decide to go all out with your project, you wonāt 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 werenāt enough, Adafruit have made it even easier to use by mounting the PCF8591's chonky SO16 surface mount package onto a breakout with standard 0.1ā/2.54mm headers andĀ SparkFun QwiicĀ compatibleĀ STEMMA QTĀ 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, youāll be able to use theĀ PythonĀ andĀ ArduinoĀ librariesĀ 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
