Smart Plant Moisture Monitor
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A 3D printed stake you push into a plant pot, with a capacitive soil moisture probe and an RGB LED at the top: green when the soil is happy, red when it wants water. Everything runs off the ESP32's 3.3V rail, with the sensor on an ADC1 pin so it keeps reading once Wi-Fi is up. The enclosure is a print of danielkrah's sensor case, sliced in Bambu Studio and run in PLA. Still in progress - the circuit is simulated in Wokwi and the case is printed, with the real build and firmware still to finish.
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