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Nokia 1100 LCD Interfacing with Microcontroller

Reusing a Nokia 1100 LCD: 96x65 pixels on a PCF8814 controller, bit-banged from a PIC18F458 to show large text and graphics on a cheap 3 V display.

Circuit diagram
Tags: #interfacing#lcd#microcontroller
Ibrar Ayyub By Ibrar Ayyub
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CategoryCommunication & Interfacing
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Summary of Nokia 1100 LCD Interfacing with Microcontroller

This article presents a cost-effective solution for displaying large text and graphics using a Nokia 1100 monochrome LCD instead of expensive graphical displays. It highlights the PCF8814 driver IC, its 3V operation suitable for battery-powered projects, and communication via bit-banging rather than I2C. The project utilizes a Microchip PIC 18F458 microcontroller with C code in MPLAB IDE to manage the 96x65 pixel resolution through vertical or horizontal addressing modes.

Parts used in the Nokia 1100 LCD Interfacing Project:

  • Nokia 1100 Monochrome LCD
  • PCF8814 Driver IC
  • Microchip PIC 18F458 Microcontroller
  • MPLAB IDE Software
 Displaying content on a normal alphanumeric display is very limited ,we have to be limited with the font size and we can't draw any graphics also. but convention Graphics lcd are really very expensive so here is the solution, you can use Nokia 1100 monochrome  LCD to display your large font text and graphics . the reason behind using this LCD is ,it is really very cheap and can be powered with 3 volts supply. so it is really good for battery powered application.
      Driver IC on this LCD panel is PCF8814 which even though has I2C protocol support - doesn't use it. Instead it uses simple bit-banging mechanism for communication.Nokia 1100 LCD Interfacing with Microcontroller

 Project Description

however you can use almost any microcontroller (need a little bit extra circuit to work with mcu who doesn't support 3v) do display content on this LCD, may be that micro controller is PIC , AVR or MSP 430 ,8051 but in this demonstration we will be using Microchip PIC 18F458 Microcontroller.
    The software program for this project will be written in C with MPLAB IDE , This LCD has a resolution of 96 x 65 pixels

 About LCD:-

Nokia 1100 Graphical LCD uses PCF8814 Controller chip From Philips. It is a chip-on glass(COG) with  9 pin (pin no 9 is not used) connector on the back side of the LCD . You can refer to its datasheet for more information about this controller. (CLICK HERE TO DOWNLOADPCF8814 Controller DATA SHEET).we will discuss only few main points here for out project purpose.

This LCD has  96 x 65 pixels , which mapped directly in the ram memory of the LCD, as shown in the figure blow

Nokia 1100 LCD Interfacing with Microcontroller schematic

The typical example of RAM is shown in the figure blow, The vertical axes area addressed form 0 to 8 with eight bits for each address when combining with x axes, it can be represented as bank.
The horizontal axes are addressed form 0 to 83 and each bit will refer the corresponding pixel in X direction.
Addressing Mode
 There are two type of addressing mode in this LCD
Vertical addressing Mode
In vertical addressing Mode each write instruction will increment the address in Y direction and then return to starting address
Horizontal addressing
horizal addressing each wire instruction will increment the address of X direction and return to starting address

For more detail: Nokia 1100 LCD Interfacing with Microcontroller

  • Why is the Nokia 1100 LCD recommended over conventional graphic LCDs?
    It is very cheap and can be powered with a 3-volt supply, making it ideal for battery-powered applications.
  • Does the PCF8814 driver IC use the I2C protocol?
    No, although it supports I2C protocol, it uses a simple bit-banging mechanism for communication.
  • Which microcontroller is used in this specific demonstration?
    The project demonstrates using the Microchip PIC 18F458 Microcontroller.
  • What programming language and IDE are used for the software program?
    The software is written in C with MPLAB IDE.
  • What is the resolution of the Nokia 1100 Graphical LCD?
    The LCD has a resolution of 96 x 65 pixels.
  • How many pins does the connector on the back side of the LCD have?
    The connector has 9 pins, but pin number 9 is not used.
  • What are the two types of addressing modes available in this LCD?
    The two modes are Vertical addressing Mode and Horizontal addressing.
  • Can other microcontrollers like PIC, AVR, or MSP 430 be used for this project?
    Yes, almost any microcontroller can be used, though some may require extra circuitry to work with 3V.
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Ibrar Ayyub

Ibrar Ayyub

I am an experienced technical writer holding a Master's degree in computer science from BZU Multan, Pakistan University. With a background spanning various industries, particularly in home automation and engineering, I have honed my skills in crafting clear and concise content. Proficient in leveraging infographics and diagrams, I strive to simplify complex concepts for readers. My strength lies in thorough...