Capacitive Soil Moisture Sensor with ESP8266 (no battery)

thingiverse

Capacitive Soil Moisture Sensor, based on ESP8266 (Mini D1) and 1$ sensor. This module run ESPHome, and connect to Home Assistant. Sensor is plugged in Analog To Digital converter. Material: - ESP 8266 d1 mini : https://www.aliexpress.com/item/32635160765.html - Sensor : https://www.aliexpress.com/item/32832538686.html Dont forget to waterproof board with nail varnish or epoxy. ** ** ** Code (had the remove comment mark on thingiverse because it screw up text display): esphome: name: d1_mini_1 platform: ESP8266 board: d1_mini wifi: ssid: "ssid" password: "password" Enable fallback hotspot (captive portal) in case wifi connection fails ap: ssid: "D1 Mini 1 Fallback Hotspot" password: "62wyi816wkxL" captive_portal: Enable logging logger: Enable Home Assistant API api: password: "password" ota: password: "password" ADC converter input sensor: - platform: adc pin: A0 filters: - lambda: |- if (x > 0.53) { return 0; } else if (x < 0.29) { return 100; } else { return (0.53-x) / (0.53-0.29) * 100.0; } name: "Grapefruit_watering" update_interval: 2s