Analog + digital output, 3.3-5V, for plant monitoring
| Output | Analog + Digital |
|---|---|
| Voltage | 3.3-5V |
| Application | Soil moisture detection |
This capacitive-style soil moisture sensor gives both analog (moisture level 0-1023) and digital (dry/wet threshold) outputs. At ₹49, it is the most economical way to add plant monitoring or smart irrigation control to an ESP32 or Arduino project.
Connect the analog output to an ESP32 ADC pin. When the moisture reading falls below your threshold (e.g., below 400 = dry soil), trigger a relay module to activate a 12V water pump. Add a DHT11 for temperature/humidity context, and log everything via Wi-Fi to a dashboard. Total BOM under ₹500.
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