This sensor is a tempeterature detector used to test the liquid temperature based on 18b20.
ELECFREAKS Octopus Waterproof Temperature Sensor (DS18B20)
Standard 3-pin GVS ports is easy to plug. 3V working voltage can drive the micro:bit. Water-proof design makes it possible to use in the liquid.
SKU:EF04095 Working Voltage:DC 3.0V Power Supply:3v-5v Connector Type:Analog Length of water-proof detector:1m Pins Definition:1-Signal 2-VCC 3-GND Response:Quick to response and high sensiivity Circuit:Simple drive circuit Stability:Stable and durable
Connect to the P1 port of the extension board.
Click "Advanced" in MakeCode to check more choices.
Click "Extensions", and search “https://github.com/elecfreaks/pxt-ds18b20
" in the dialogue box to download the codebase of 18b20.
Links: https://makecode.microbit.org/_1x1ERwiT1bui
You can also download it directly:
The current temperature value is showing on the micro:bit.