Air Quality Monitoring Networks allow the measurement, operation and predictive analysis of the evolution of air pollution in different areas (urban areas, industrial areas, special nature ...

A Simple Beginner Arduino Code for sensing the presence of humans using PIR Sensor with a time limit. Here, We have used a 20 by 4 LCD Display and a PIR Sensor. When the PIR senses movement using IR ...

Arduino Code Sketch ... LOW); delay(30*1000); /* inhibit alert input for 30 seconds during initial power on. Only for PIR sensor (see article) */ } void loop(){ lightsensorValue = analogRead ...

Posted in Arduino Hacks, Holiday Hacks Tagged arduino nano, DF Player Mini, PIR sensor, power LED, raven Motion-Activated Clock Only Lights Up On Command December 16, 2022 by Lewin Day 8 Comments ...

A year ago [Lochie] bought an Airwick automatic air freshener, and while he thought it was a cool gadget, the freshening spray and the novelty ran out in short order. The device collected dust in h… ...

In an era where homeowners frequently leave for work or education, robust security for residences is imperative. Traditional security measures, including window and door locks, present challenges such ...