Arduino Membrane Keypad Tutorial

A keypad allows you to interact with a microcontroller. You can salvage these keypads from old telephones or you can purchase them from most electronics store for less than $2.

How to Configure WiFi on Your Raspberry Pi

In this post, you’ll configure the WiFi on your Raspberry Pi. If it’s your first time using the RPi, first make sure you read my Getting Started with Raspberry Pi guide.

Arduino with PIR Motion Sensor

In this project you’re going to create a simple circuit with an Arduino and PIR motion sensor that can detect movement. An LED will light up when movement is detected.