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I do not exactly have a green thumb. Therefore I am grateful for any help that makes life more beautiful for my plants. So that I water them regularly, I have built the Flower Guard. Flower Guard consists of a moisture sensor, an ESP8266 and an OLED display. Depending on the moisture measured in the soil, the display will show a different symbol.

In this project I experimented with data transfer via MQTT, but the code did not find its way into the repository until now.