Here are some DIY LDR switch circuits available on our website and the web. LDR switches are used to switch a relay or other device when light are present or absent. LDRs or Light Dependent Resistors ...

Circuit Diagram and Working 🔗 Circuit Working: The LDR is connected in a voltage divider circuit. The microcontroller reads voltage from the LDR and compares it to a threshold. If the voltage ...

This project uses an ESP32 microcontroller to monitor farmland conditions using various sensors (temperature, light, humidity, soil moisture). Data is sent to a MATLAB IoT Analytics platform for ...