nokia5110

Nokia 5110 LCD interface library for BeagleBone

HISTORY:

21 Feb 2012: Initial edit and release 22 Oct 2013: Updated for BoneScript 0.2.4

SUMMARY:

This is a set of bonescript files that where written to control a Nokia 5110 LCD display from Adafruit or Sparkfun.

  http://www.adafruit.com/products/338
  https://www.sparkfun.com/products/10168

USE:

  1. Download the LCD_5110.js file and put it at the same level as the calling program.

  2. To use these routines, put the following in your program:

    var lcd = require('./LCD_5110.js');

  3. Define the digital outputs used to control the LCD:

    lcd.PIN_SCLK = "P??"; lcd.PIN_SDIN = "P??"; lcd.PIN_DC = "P??"; lcd.PIN_SCE = "P??"; lcd.PIN_RESET = "P?_?";

  4. Call setup():

    lcd.setup();

FUNCTIONS:

// // setup () // reset lcd and set up set up display contrast and bias // // // write(dataORcommand, data) // Write data or command to lcd // // // gotoXY( column, row) // set current lcd position to row/column // // // inverse(mode) // turn inverse mode on or off // // // bitmap(array) // send bitmap to LCD at current position // // // character(char) // outputs ASCII char (0x20 - 0x7f) at current position // // // string(string) // outputs ASCII string (0x20 - 0x7f) at current position // // // clear() // clears lcd by sending spaces to the entire display // leaves current position at (0,0) // // // Scroll routines: (scrolls happen on one row between (4,row) and (82,row) // scrollInit(row) - clears the scroll area and init local vars // scroll(row, string) - scrolls string one char, repeat call to scroll again // scrollLength(string) - returns number to scroll string one time off screen // // // Progress Bar Routines: (Progress Bar happens between (2,row) and (82,row) // progressInit(row) - clears the scroll area and init local vars // progressBar(row, value) - draws a progress bar of value length // value from 0 to 100 //