Microcontroller based scientific calculator

[scs83]

avr scientific calculator

Hi,

I am currently doing a microcontroller based scientific calculator which is interfaced with a keypad and an LCD. Can anyone please help me with the circuit diagram? I am using AT89C51 but I don't know the circuit diagram to interface it to the LCD and keypad.

Thanks!!

 

[nicleo]

microcontroller based calculator

Some examples of "Interface to LCD and Keypad":

**broken link removed**
**broken link removed**
**broken link removed**

Hope you will find them useful.

 

[Fragrance]

microcontroller calculator

hi

proteus demo includes such example based on Avr , 8081 and pic just need to demo version to check out how this impliment in uc

http://www.labcenter.co.uk

 

[scs83]

circuit diagram of a scientific calculator

Thanks guys,

I am using a 16*2 LCD and a two 4*4 matrix kepyad to interface with the microcontroller. Anyone have a website that have the interfacing program in C language?

 

[bsiswoyo]

microcontroller based calculator

Please look at PROTEUS software in sample files.

In samples have calculator by using 8051 PIC and AVR, but no scientific calculator. You can modify it.

thx

 

[metal]

cirucuit diag. of scientific calculator

Hello

Proteus lite has an example of using 8051 as a calculator, also the assembly code and circuit diagram are included.

Regards

 

[Taro]

micro controller based on caluclater

Try this link too.
**broken link removed**

 

[rchly]

hi, mind to ask. wat is D39 file?
how to build the given Clanguge file into hex?
i use MPlab to generate the code, but failed.
i really need help.