Build Your Own Qr Code Lock And Manage It Through Our Apps

Our goal is to replace a regular key with a system that will open a Lock by scanning a QR Code generated on the smartphone. The entire project consists of 3 open source repos; mobile app, website and Scanner on Raspberry (ESP32 in the future)

Pir Sensor Tutorial - With Or Without Arduino

A tutorial explaining the working of a PIR sensor.

Driving A Relay With An Arduino

Here we are to discuss how a relay works and how we can hook it up to an Arduino.