Many people get confused with two terms XBee and ZigBee, most of them use it interchangeably. But this is actually not the case; ZigBee is standard protocol for wireless networking. While XBee is a product that supports various wireless communication protocol, including ZigBee, Wi-Fi (Wi-Fly module), 802.15.4, 868 MHz module etc. In this tutorial we are mainly focused on Xbee/Xbee-PRO ZB RF module which consists of ZigBee firmware.
There are mainly two types of switches- mechanical switch and electrical switch. Mechanical switches require physical or manual contact with switch for operation. Electrical switches not require physical or manual contact, it has ability to perform operation. Electrical switches operate under the action of semiconductors.
In this tutorial we will learn how to interface a Nokia 5110 Graphical LCD with Arduino and get it working.
There are two methods of making 2-way switching connection one is 2-wire control and another is 3-wire control. We have explained both the methods below and both the methods are demonstrated in the Video given at the end of this article.
In this project, let use the power of Raspberry Pi to build a Robot that could track ball and follow it just like the robots that plays football.