Automatic Light Controller with PIR and LDR Sensors This repository contains the implementation and documentation of a project using an Arduino Uno R3 microcontroller to control lights automatically ...

The LDR must be soldered in a way that it can comfortably see ambient light through the Fresnel lens. The tiny microcontroller brain. To be frank, using a microcontroller is probably overkill for most ...

MPCA college project using PIR, temperature, and LDR sensors. Detects motion, tracks temperature, and measures light intensity. Built with Arduino for real-time environmental monitoring. - ...

Arduino Uno R3; 5mm LDR; 10K ¼W Resistor; 1K ¼W Resistor; 5mm Red LED ; 5V Piezo-Buzzer ; 9V battery; PIR/IR sensor (see text) Sensor Input. Advertisement. Partner Content. ... (PIR) Sensor. The PIR ...

At one end is an LED and at the other the LDR, ... and with a simple divider circuit a voltage can be read by an Arduino. ... but using another LED as the light sensor. Closeup of the sensor: ...

The most common method is to use the PIR sensor, ... Connect the VOUT pin to the D2 pin of the Arduino. Also, connect the LED to pin D3 and GND through a current limit resistor. Here is how the ...

IoT Based Smart Inventory Management System for Kitchen Using Weight Sensors, LDR, LED, Arduino Mega and NodeMCU (ESP8266) Wi-Fi Module with Website and App Abstract: Smart kitchen inventory ...