Capacitive Soil Moisture Sensor with ESP8266

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Deprecated, see my other design:

I had trouble with Deep Sleep considering my limited programming skills. I changed the design for 5V usb power supply. I never finished the design with the battery to include top cover.

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Capacitive Soil Moisture Sensor, based on ESP8266 (Mini D1) and 1$ sensor.
It runs with 1x 18650 in deep sleep, with wake up every 2 hours.

This module run ESPHome, and connect to Home Assistant.
Sensor is plugged in Analog To Digital converter.
Battery directly plugged to 5V input. Works perfectly even if it provide 3.3-4.2V.

Material:
- ESP 8266 d1 mini : https://www.aliexpress.com/item/32635160765.html
- Sensor : https://www.aliexpress.com/item/32832538686.html
-18650 case : https://www.aliexpress.com/item/33025068810.html