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Portable thermometer and hygrometer

Overview

STC15W204S+DS18B20+DHT11+any single bus or IIC bus sensor (2 IO ports reserved) supports 0.56-inch or 0.36-inch four-digit digital tube display, direct welding, no adapter board required

The DS18B20 is used in the front of the video and the AHT10 is used in the back. You can see that there is a temperature deviation between the two. I used a logic analyzer to capture the data. It is a problem with the sensor itself, not a program problem. I don’t know what happened. . . .

20210304 revision reduces the size, removes AHT10, and adds battery power supply

Design Files

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Update:2025-06-19 05:46:43

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