In this project we are going to design a RFID based toll plaza system for security purposes. So this system open gates and allow people only with the authorized RFID tags. The authorized tags holder ID’s are programmed in to the ATMEGA Microcontroller and only those holders are allowed to leave or enter the premises.

A Hexapod is a six legged robot which looks like a spider. I was giving presentation on 8051 microcontroller a student asked me ,”Can we make a hexapod using 8051 and I said yes we can but he added that he searched on this topic on google and was not able to find good information about it.

The E.L.F. robot dances to the beat of any song it hears. One of the coolest things about this project is that its creator, John Jensen, had no previous hardware building experience prior to this project. This quick learner made the SpiderBot while deployed to Iraq. He chose the BeagleBoard to give the spider plenty of speed and well-defined dance moves.

My motivation for this project was to minimize the usage of functions such as _delay_ms(), _delay_us() and their derivatives with some exceptions, like delays to control the LCD.

Delay pauses the whole program, so if one is using delay for 10 seconds everything will pause for those 10 seconds, therefore nothing can be done in those 10 seconds.

Last time, I posted an ultra-simple “from scratch” RFID reader, which uses no application-specific components: just a Propeller microcontroller and a few passive components. This time, I tried the opposite: building an RFID tag using no application-specific parts.