The Adafruit Chainable DS18B20 Extender Breakout makes it easy to connect multiple DS18B20 temperature sensors in a daisy chain using standard STEMMA JST PH 2mm cables. Each breakout includes screw terminal blocks for direct connection of DS18B20 sensors in TO-92 or waterproof cable form — no soldering required.

Chain multiple extenders together using 3-pin JST PH cables to build a multi-point temperature monitoring network. Each board includes a 4.7K pull-up resistor (with a cuttable trace to disable) and a buffered signal LED that blinks red during 1-Wire data transmission.

Key Features

• Chainable Design – Daisy-chain multiple extenders with STEMMA JST PH 2mm cables
• Screw Terminal Blocks – Connect DS18B20 sensors (TO-92 or cable style) with just a screwdriver
• 4.7K Pull-Up Resistor – On-board pull-up with cuttable trace to disable when not needed
• Signal LED – Buffered red LED blinks during 1-Wire data transmission for easy debugging
• STEMMA JST PH 2mm Connectors – Standard 3-pin connectors for easy, solderless chaining

Compatible Sensors

• Gravity DS18B20 Temperature Sensor
• Octopus Waterproof DS18B20 Temperature Sensor

Ideal For

• Multi-point temperature monitoring systems
• Environmental and IoT sensor networks
• Quick prototyping with DS18B20 sensors

Package Contents

• 1× Adafruit Chainable DS18B20 Extender Breakout