Simple automatic toll plaza using RFID

[Shuvankar Biswas]

I am doing my final year project on the topic Simple toll plaza system using low frequency RFID interfaced with 8051 microcontroller (AT89C51). Can I use AT89s51 instead of AT89c51. Keeping all the components same and also the code?

Please help me out with this. 

 

[Vara Ashishkumar]

Hey Shuvankar

you can use AT89S51 instead of AT89c51.no any big difference between them but AT89S51 has advantages of In System Programming.

[Shuvankar Biswas]

Thanks for the info. I wrote the program successfully into the microcontroller and when I completed the circuit and gave 5v supply only the LCD lights up and it is displaying nothing. I am not getting what is the problem here. Could help me out on detecting the fault.

thanks for the help again…

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