{"title":"Adafruit PCF8591 Quad 8-bit ADC + 8-bit DAC - STEMMA QT / Qwiic","handle":"adafruit-pcf8591-quad-8-bit-adc-8-bit-dac-stemma-qt-qwiic","url":"/products/adafruit-pcf8591-quad-8-bit-adc-8-bit-dac-stemma-qt-qwiic","description":"The Adafruit PCF8591 Quad 8-bit ADC + 8-bit DAC combines four analogue input channels and one analogue output channel in a single I2C breakout. Measure voltages from potentiometers, sensors, or other analogue sources — and generate analogue output signals — all over a simple two-wire connection.\n\nWith 8-bit resolution, the PCF8591 is ideal for basic analogue measurement and signal generation tasks where high precision isn't critical. Three I2C address jumpers let you chain up to 8 breakouts on a single bus for 32 ADC channels and 8 DAC channels. STEMMA QT connectors make wiring solderless and simple.\n\nKey Features\n\n\n4× 8-bit ADC Channels – Measure up to four analogue voltages simultaneously\n\n1× 8-bit DAC Channel – Generate analogue output voltages\n\nI2C Interface – Simple two-wire connection, works with any I2C-capable board\n\n3 Address Jumpers – Up to 8 breakouts on one bus (32 ADC + 8 DAC channels)\n\nSTEMMA QT / Qwiic – Solderless STEMMA QT connectors for easy daisy-chaining\n\nBreadboard Friendly – Standard 0.1″ header pinout with SO16 chip mounted on breakout PCB\n\n\nIdeal For\n\nAdding analogue inputs to boards without ADC (e.g. Raspberry Pi)\nReading potentiometers, light sensors, or other analogue sensors over I2C\nGenerating analogue control voltages for circuits or peripherals\nMulti-board setups needing many analogue channels on a budget\n\n\nResources\n\nPCF8591 Learn Guide\nArduino PCF8591 Library\nCircuitPython/Python PCF8591 Library\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":4097,"title":"Default Title","sku":"AF-4648","price":13.15,"on_sale":false,"in_stock":true,"available_quantity":100,"option1":"Default Title"}]}