{"title":"Adafruit DS2484 I2C to 1-Wire Bus Adapter Breakout","handle":"adafruit-ds2484-i2c-to-1-wire-bus-adapter-breakout-ada5976","url":"/products/adafruit-ds2484-i2c-to-1-wire-bus-adapter-breakout-ada5976","description":"The Adafruit DS2484 is a single-channel I2C-to-1-Wire bus adapter breakout with built-in ESD protection and split supply support. Simply connect it to an existing I2C bus and use the screw terminals to attach DS18B20 temperature sensors or other 1-Wire devices.\n\nThe 1-Wire protocol, originally developed by Dallas Semiconductor, uses a single data wire plus ground (and an optional power wire) to communicate with multiple sensors or memory chips on a shared bus. While you can bit-bang 1-Wire on most microcontrollers, the DS2484 provides a dedicated hardware bridge for platforms without native 1-Wire support — including desktop computers and single-board computers with I2C.\n\nKey Features\n\n\nDS2484 Controller – Single-channel I2C-to-1-Wire bridge with hardware protocol handling\n\nESD Protection – Built-in electrostatic discharge protection for the 1-Wire bus\n\nSplit Supply Support – Independent voltage for the 1-Wire power pin via cuttable trace and terminal block injection\n\nScrew Terminals – Easy connection for 1-Wire devices without soldering\n\nSTEMMA QT / Qwiic – Dual I2C connectors for solderless daisy-chaining with other I2C devices\n\nWide Voltage Range – Works with 3.3V or 5V logic from the STEMMA QT cable\n\n\nAlso Available\n\nDS2482S-800 – 8-Channel I2C to 1-Wire Bus Adapter\n\n\nIdeal For\n\nDS18B20 temperature sensor networks\nAdding 1-Wire capability to I2C-only platforms\nLong-distance sensor wiring with shared bus topology\nPrototyping with breadboard-friendly breakout form factor\n\n\nPackage Contents\n\n1× Adafruit DS2484 I2C to 1-Wire Bus Adapter Breakout (fully assembled)\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":987,"title":"Default Title","sku":"AF-5976","mpn":"ADA5976","price":14.52,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":100,"option1":"Default Title"}]}