PIC software SPI driven nokia 5110 LCD

Nokia 5110 graphical lcd is convenient to use because of SPI interface. So it is one of favorite LCDs in embedded projects. Following project is a interfacing example of this LCD to PIC16F84 microcontroller.

The problem is that this PIC microcontroller lacks SPI interface so there is only one way to drive this LCD – use software based SPI communications. Source code is written in ASM language. So C lovers may find it tricky to use. In other hand ASM has a big advantage versus C in small MCUs. So you’re free to choose.

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