{"title":"Adafruit STHS34PF80 IR Presence / Motion Sensor","handle":"adafruit-sths34pf80-ir-presence-motion-sensor-ada6426","url":"/products/adafruit-sths34pf80-ir-presence-motion-sensor-ada6426","description":"The Adafruit STHS34PF80 is a compact IR presence and motion sensor that detects human and animal presence up to 4 metres away — without requiring a lens. Unlike traditional chunky PIR sensors with simple digital output, this sensor provides a full I2C interface with detailed readings on IR intensity, presence detection, movement, and temperature changes.\n\nThe surface-mount sensor comes on a STEMMA QT breakout with a 3.3V regulator and level shifting, making it compatible with both 3.3V and 5V logic. STEMMA QT / Qwiic connectors on each side enable solderless I2C daisy-chaining.\n\nKey Features\n\n\nSTHS34PF80 IR Sensor – Detects presence, motion, and temperature changes\n\nUp to 4 m Range – No lens required, easy to fit in small enclosures\n\nI2C Interface – Detailed IR readings beyond simple on/off detection\n\nSTEMMA QT / Qwiic – Solderless I2C connectors for easy daisy-chaining\n\n3.3V Regulator + Level Shifting – Compatible with 3V and 5V logic\n\nCompact Form Factor – Much smaller than traditional PIR sensors\n\n\nIdeal For\n\nRoom occupancy and presence detection\nMotion-activated lighting and displays\nSmart home automation\nCompact security and monitoring systems\n\n\nPackage Contents\n\n1× STHS34PF80 breakout board (assembled and tested)\n\n\n\nNote: STEMMA QT cable not included.\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":102,"title":"Default Title","sku":"AF-6426","mpn":"ADA6426","price":28.18,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":1,"option1":"Default Title"}]}