30. Octopus Water-proof Temperature Sensor(EF04095)¶

30.1. Introduction¶

This sensor is a tempeterature detector used to test the liquid temperature based on 18b20.

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30.2. Products Link¶

ELECFREAKS Octopus Waterproof Temperature Sensor (DS18B20)

30.3. Characteristics¶

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.

30.4. Specification¶

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

30.5. Outlook and Dimensions¶

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30.6. Quick to Start¶

Connection Diagram¶

Connect to the P1 port of the extension board.

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Add Package¶

Click “Advanced” in MakeCode to check more choices.

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Click “Extensions”, and search “https://github.com/elecfreaks/pxt-ds18b20” in the dialogue box to download the codebase of 18b20.

Programme as the Picture Shows¶

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Reference¶

Links: https://makecode.microbit.org/_1x1ERwiT1bui

You can also download it directly:

Results¶

The current temperature value is showing on the micro:bit.