Ensure proper orientation and connection of the LDR and LED to the Arduino Uno. Adjust the threshold value and resistor values to optimize the sensitivity and responsiveness of the light sensor.

LDR connections to NodeMCU---> connect one line of terminal of LDR to GND and the other to analog pin A0 of the NodeMCU.Also make sure to surround the LDR with insulating tape so that no other light ...

After uploading the code the Piezo will start making short beeps. On bright light the Piezo will only beep and on dark light it will be short. Some ideas for this experiment: Alarm for Lights in the ...

Wasting energy by keeping the street lights on all night, we can build an affordable, high-performance smart street light system with the Arduino, LDR sensors. In this article, we'll discover how to ...

The massive quantity of electricity gets used in lights through roadways in India. Still, roadways remain empty for nearly all of the day after at night, with a handful of cars passing during the ...

The low-powered device consists of a PIC micro-controller, an LDR (light dependent resistor) for light sensing and a low current relay which switches between the two modes.

Create a smart blind stick using Arduino to help visually impaired individuals navigate safely. This DIY project uses an ultrasonic sensor, buzzer, and LED indicators to detect obstacles and provide ...

Build a Speed Sensor using Arduino with IR speed sensors to accurately measure the speed of moving objects. This tutorial covers circuit design, sensor calibration, speed calculations, and optimized ...