What is a Raspberry Pi

The Raspberry Pi is a credit-card sized computer that plugs into your TV and a keyboard. It’s a capable little PC which can be used for many of the things that your desktop PC does, like spreadsheets, word-processing and games. It also plays high-definition video. 


The Raspberry Pi measures 85.60mm x 56mm x 21mm, with a little overlap for the SD card and connectors which project over the edges. It weighs 45g. 

The SoC is a Broadcom BCM2835. This contains an ARM1176JZFS, with floating point, running at 700Mhz, and a Videocore 4 GPU. The GPU is capable of BluRay quality playback, using H.264 at 40MBits/s. It has a fast 3D core accessed using the supplied OpenGL ES2.0 and OpenVG libraries.

                                

16 Led Chaser

            The heart of the project is Microchip Pic 16F628A. The Pic 16F628A muc can show various type of led design. You can seen in the above video.The 8 O\P of muc drives the 16 leds. The push button help to change the led pattern.

Digital Security System

Inside the security system.....

                         

Cell phone controlled car without micro controller

I had made this cell phone controlled car for my project. In every cell phone controlled car there is costly micro controller. But in my car i don't use a  micro controller. so the programming is not need for my car.  So every beginners in the electronics can do this project.

The car can move forward, backward, Left turn, Right turn, Rotating clock wise, Anti rotating clock wise.

The main part of the car is DTMF decoder ic and a motor driver. The DTMF decoder decodes the signals from the mobile and send to the motor driver ic. For every decoded signal there is a movement in the car.

My Old Prototype 

New Prototype 

     The post will updated with circuits. So keep visiting or follow the blog.