Hello friends, today's post is about designing a simple calculator with 8051 Microcontroller. In our previous post, we have seen How to Interface keypad with 8051 Microcontroller in Proteus ISIS. Moreover, we have also worked on Interfacing of LCD with 8051 Microcontroller in Proteus ISIS. If you haven't read these two posts then my suggestion is to read them first before going into the details of this post, as we are going to use both keypad and LCD in order to design the simple calculator with 8051 Microcontroller.
Actually we have already understood the working of both keypad and LCD so I ...