MicroPython on Cheap $3 ESP8266 WeMos D1 Mini for 2x Temperature Logging, Wifi and Mobile Stats

With tiny cheap ESP8266 chip / device you can log temperature data outside, in room, greenhouse, lab, cooling room or any other places completely free. This example we will use to log cooling room temperature, inside and outside.
Device will be connected to internet via Wifi
You will be able to check latest readings on your mobile phone, desktop or any other device with browser

Supplies:
You need hardware parts to make logging device
You can purchase needed devices here (minimal required):

WeMos D1 mini
micro USB cable
2x DS18B20 waterproof with module board
Also nice to have:

USB charger to Power your device
Waterproof enclosure”

Link

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