# Adafruit Chainable DS18B20 Extender Breakout - STEMMA JST PH 2mm

**Type:** Product page · **SKU:** ADA5971 · **Brand:** [Adafruit](https://core-electronics.com.au/brands/adafruit-australia)
**Page:** https://core-electronics.com.au/adafruit-chainable-ds18b20-extender-breakout-stemma-jst-ph-2mm.html ([markdown](https://core-electronics.com.au/adafruit-chainable-ds18b20-extender-breakout-stemma-jst-ph-2mm.html.md))

One of the perks of working at adafruit is you get to request hardware - and you'll probably get fast turnaround! One of our adafruit.io developers...

## Pricing

- **Price:** $8.10 (inc GST) — $7.36 AUD, exc GST
- **Quantity discounts:** 10+ $7.15 (exc GST) · 50+ $7.00 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Aug 19 and Aug 24.

## Description

One of the perks of working at adafruit is you get to request hardware - and you'll probably get fast turnaround! One of Adafruit's adafruit.io developers requested "an easy way to chain DS18B20 sensors for testing with [adafruit.io's wippersnapper service](https://learn.adafruit.com/using-ds18b20-temperature-sensor-with-wippersnapper)" at 11:54am one Monday morning, and after a few back-and-forth's Adafruit came up with the **Adafruit Chainable DS18B20 Extender Breakout**. Bit of a mouth-full, but Adafruit are better engineers than marketers doncha-know.

While there is absolutely nothing stopping you from just wiring up DS18B20's directly to your microcontroller, these extender breakouts will make things just a lil bit easier. You can use [JST 3-pin cables](https://core-electronics.com.au/jst-ph-3-pin-plug-plug-cable-100mm-long.html) to chain the extenders, the soldered-on screw terminal blockss mean you can easily connect [DS18B20's in TO-92](https://core-electronics.com.au/ds18b20-digital-temperature-sensor-extras.html) or [cable style](https://core-electronics.com.au/waterproof-ds18b20-digital-temperature-sensor-extras.html) with just a screwdriver.

Each extender has a 4.7K signal pullup on board that can be disabled by cutting a trace, and a buffered signal LED that will let you know when there's data transmission on the 1-Wire line. When the red LED blinks, you know that data is going over the 1-wire line.

**Please Note:** This board *doesn't* come with a [DS18B20 sensor](https://core-electronics.com.au/catalogsearch/result/?q=ds18b20) itself, its just an adapter-helper. You supply the sensor + a JST PH-compatible 3-pin cable.

## Technical Details

Product Dimensions: 25.3mm x 18.0mm x 10.2mm / 1.0" x 0.7" x 0.4"

Product Weight: 3.1g / 0.1oz

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/A/D/ADA5971-1.jpg)