For this, we need a light sensor ... LDR is achieved because it is a property of semiconductor material used on the surface. We previously made many Circuits using LDR, which use LDR to automate the ...

Uses a Kalman filter to smooth and correct sensor readings. - Reads ambient light levels using an LDR sensor. - Communicates sensor data wirelessly via Bluetooth. - Sends processed values over serial ...

I have used the INPUT_PULLUP function in Arduino IDE instead of using the pull-up resistors ... I have soldered all the components as per the circuit diagram. Then connect the ESP32 board, DHT11 ...

In my case, I'm using a small LiPo battery that fits inside the bottom of the ESP32 board, sacrificing some runtime for a compact design. Due to its minimal features and components, the circuit ...

Abstract: This paper presents a Smart Street Lighting System using IoT technology ... The system comprised an STM32 microcontroller, an ESP32 Wi-Fi module, LED lights, an IR sensor, an LDR sensor, ...