DIY Raspberry Pi Wi-Fi Controlled Car

Craze for electronic toys has always defied the age factor. Be it a toddler or a teenager, these always wonderful electronic leisure never stop amusing and charming any of them. Adding to this charm is the constant upgrades these toys get. Oh you bought a robot car this year, how about a robot car which climbs up the wall??!1 Oh now you have the one climbing up the wall, but have you seen this with camera and mobile phone connectivity? Seriously, this thirst keeps on increasing to buy more and more. But when we DIY a lot of electronics at our homes, can’t we make one highly advanced toy for the festive season? Well, if you are passionate to get something extra for yourself and don’t mind doing a DIY for that, this blog would definitely interest you as it shows to make a Raspberry Pi based Wi-Fi controlled remote car.

Hi-tech Laser based Intruder Detector

Contributor: 
Ganesh Selvaraj

This tutorial will show you how to make a Laser based Intruder alerter which captures image of the intruder automatically without any microcontroller or programming.You may have seen few movies where there is a security system containing multiple laser rays flashing across the room which when interrupted triggers an alarm. We are going to try replicating that kind of arrangement using a single laser pointer and a couple of mirrors.

 

DIY- Emergency Phone Charger using a DC Motor

Contributor: 
Ganesh Selvaraj

During power outages, and all the batteries around your home drain away, the only option left for you would be this. This tutorial shows you how to charge a phone using a 12V DC motor and a couple of other parts.

A DC motor can also work as a DC generator and vice-versa since their construction and operating principle are similar. So I would be using a 12V DC geared motor as a generator since we need a power source to charge our device.

Mobile - Gesture Controlled Car

Contributor: 
Ganeev Singh

Have you ever wondered of operating a toy car with you own mobile phone? Yes I have made such a thing. This project involves the communication between your mobile phone and the car. Here I have used the internal accelerometers of the mobile phone to operate my toy car.

The system communicates wirelessly over Bluetooth interface, thus we require a phone with Bluetooth compatibility. Moreover I have made an Android Application for the same task therefore the phone must have ANDROID operating system J

 

Fully Customized Device On/Off Timer

Contributor: 
A. M. Bhatt

Timers are used in many different applications for example in Industrial Applications, to switch ON or switch OFF any device or a machine load for a specific period of time.  In the same way the timers are used in Domestic Appliances like in Air Conditioners, Microwave Ovens, Washing Machines, Food Processors etc. The applications for the timers could also be seen in Military Applications and Space Applications, to trigger any Bomb or a Missile or to ignite booster rockets for lift offs at a specific time. Here the given project demonstrates the fully featured and customized timer built using AVR Microcontroller ATMega32. 

Electronic Power Monitor with Real Time Plotting

Contributor: 
Soham Chetan Kamani

A majority of the wattmeter’s we see today are analog in nature. They consist of numerous moving parts and contain bulky components which not only take up space but also cost a lot of money and are not as accurate as they should be.

In this tutorial you will learn how to make a wattmeter which is purely electronic and has no moving parts. The components are also easily available at an affordable price.

DIY- PIR Based Automatic Staircase Lighting

Contributor: 
Ganesh Selvaraj

This tutorial will teach you how to make the simplest motion detecting staircase light without any need of any additional microcontroller and programming using PIR based Sensor. Passive Infrared (PIR) Sensors basically measure the Infrared light radiated by an object present in its field. All living creatures (and objects) with a temperature above absolute zero (which is 0 Kelvin or -273oC) emit heat energy in form of radiation. The PIR sensors are tuned in such a way that they detect only the radiation emitted by human beings.