Adafruit
Adafruit Chainable DS18B20 Extender Breakout - STEMMA JST PH 2mm
· MPN: ADA5971
The Adafruit Chainable DS18B20 Extender Breakout makes it easy to connect multiple DS18B20 temperature sensors in a daisy chain using standard STEMMA JST PH ...
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
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
Jargon buster
Plain-language definitions for the technical terms used above.
- 1-Wire
- 1-Wire is a communication method where devices share a single data line, often with each device having its own address. It matters because several temperature modules can be connected to one microcontroller pin instead of needing a separate pin for each probe.
- breakout
- A breakout is a small circuit board that makes a tiny or hard-to-solder component easier to connect to with standard pins. It matters because this OLED module can be wired into a microcontroller project without needing to solder directly to the display’s fine contacts.
- Daisy chain
- A wiring layout where devices are connected one after another in a line. It matters because long or awkward chains can make projects messy or less convenient, while a hub lets several devices branch out from one point.
- DS18B20
- A common digital temperature sensor often sold in waterproof probe form. It matters here because the kit does not include temperature measurement, and a DS18B20 is the suggested add-on if your water readings need temperature context.
- IoT
- Short for Internet of Things, meaning physical devices that connect to networks or the internet to send data or be controlled remotely. It matters if you want projects such as connected sensors, remote controls or classroom data-logging activities.
- JST PH
- A small keyed plug-and-socket connector with 2 mm pin spacing, often used for low-power electronics connections. You need the correct JST PH cable, and its current rating limits how much power should be passed through it.
- LED
- A light-emitting diode is a small electronic component that lights up when current flows through it in the correct direction. In this kit, LEDs create the flashing effect, so polarity and correct soldering matter for the project to work.
- pH
- A measure of how acidic or alkaline a liquid is, on a scale where 7 is neutral. For a water monitoring kit, pH tells you about water chemistry and whether the included probe matches the range and accuracy your project needs.
- STEMMA
- A plug-and-cable connection system used on some maker electronics boards to make wiring simpler. If a product uses STEMMA, you need the matching cable or connector type to plug it in without soldering.
Find this product in
Brands
Related Tutorials
Free guides on learn.littlebird.com.au
