The “Automatic Stair Light System using Ultrasonic Sensor” project is a simple yet innovative solution to the problem of having to manually switch on the lights when using a staircase. This project ...

For this, we need a light sensor to detect ... As per the circuit diagram, we have made a voltage divider circuit using LDR and 100k resistor. The voltage divider output is feed to the analog pin of ...

In this project, we will see the Automatic Room Lights using Arduino and PIR Sensor, where the lights in the room will ... Rest of connections are shown in the below circuit diagram. The paper has ...

1. Fig 1: Author’s prototype for Automatic Washroom Light Using IR Sensors The circuit diagram of the automated washroom light is shown in Fig. 2. It is built around Arduino Uno (Borad1), BC547 ...