The switch is a semiconductor relay S202DS2 and the oscillator is 4060. Sensor Light Switch Schematic. From the moment that T4 and T5 are opened, relay’s LED start to light and powers the lamp. As ...

LDRs or Light Dependent Resistors are very useful especially in light/dark sensor circuits. Normally the resistance of an LDR is very high, sometimes as high as 1000 000 ohms, but when they are ...

Proximity Sensor Switch – Circuit Diagram. The circuit diagram of the wireless load control unit is shown in Fig. 2. This design is based on Arduino Nano board and built around an I2C LCD (module1).

Circuit Diagram to Interface Ambient Light Sensor with ESP32. For testing, connect the Ambient light sensor module along with the display module to the ESP32 Devkit as per the Circuit diagram below.