vfd_examples

#!/usr/bin/php
<?php
/*------------------------------------------------------------------------------
  Noritake.VFD Examples
  Some examples of how to use the Noritake.VFD driver
--------------------------------------------------------------------------------

  This is the Noritake GU256x64D-7000 VFD pinout with the JRB jumper linked
  across C and B:

    VFD Pin  What it is       What pin you need to connect it to
    1        Ground           Ground
    2        Power            5v
    3        Busy             GPIO
    4        Register Select  Ground
    5        /Write           GPIO
    6        /Read            5v
    7        Data Bus 0       GPIO
    8        Data Bus 1       GPIO
    9        Data Bus 2       GPIO
    10       Data Bus 3       GPIO
    11       Data Bus 4       GPIO
    12       Data Bus 5       GPIO
    13       Data Bus 6       GPIO
    14       Data Bus 7       GPIO

--------------------------------------------------------------------------------

  Functions:

    reset()                        Reset the screen
    power(enable)                  Turn on and off the power
    brightness(brightness)         Adjust the brightness between 0 (off) and 8 (full)
    screensaver(blink)             Turn off or inverse video blink the screen

    output(string)                 Output some text
    clear()                        Clear the screen
    home()                         Move the cursor to the top left
    font(width, proportional, scale_x, scale_y)
                                   wide on or off, proportional on or off, scale is 1 to 4, scale_y is 1 to 2

    inverse(enable)                Inverse video on off
    overlay(mode)                  Mode options are VFD::OVERLAY_NONE, VFD::OVERLAY_OR, VFD::OVERLAY_AND or VFD::OVERLAY_XOR
    wrap(enable)                   Immediately wrap text
    auto_scroll(mode, speed)       Mode options are VFD::AUTO_SCROLL_WRAP, VFD::AUTO_SCROLL_VERTICAL, VFD::AUTO_SCROLL_HORIZONTAL
                                   speed only works in horizontal mode as is 0 (slow) to 31 (fast)
    scroll(amount, repeat, delay)  Amount is the Y distance, to scroll X multiply by the number of rows (Eg 8), repeat is 0 to 65535, delay is 0 to 255

    cursor_show(enable)            Cursor on off
    cursor_position($x, $y)        Position the cursor, x is 0 to 511, y is 0 to 7
    cursor_left()                  Move the cursor left
    cursor_right()                 Move the cursor right

    window_select($value)          Select the window to use, should be between 0 and 4 where 0 is the base window
    window_create($window, $x, $y, $width, $height)
                                   Create a window, window is 1 to 4, x is 0 to 511, y is 0 to 7, width is 1 to 512, height is 1 to 8
    window_delete($window)         Delete window, window should be between 1 and 4

    import_xbm($file)              Converts an xbm image file (up to 512 x 64) into the VDF display format
    image($image)                  Displays an image imported using import_xbm()

--------------------------------------------------------------------------------
  Daniel Bull
  daniel@neonhorizon.co.uk
------------------------------------------------------------------------------*/


// Load GPIO Driver
require_once('PHP_GPIO/RTk.GPIO.php');
use PHP_GPIO\RTK\GPIO as GPIO;

// Load VFD Driver
require_once('PHP_GPIO/Noritake.VFD.php');
use PHP_GPIO\Noritake\VFD as VFD;

// Open a connection to your RTk.GPIO
$GPIO = new GPIO();

// Set the pin numbering scheme we are going to use
$GPIO->setmode(GPIO::BCM);

// Add the VFD to the GPIO
$VFD = new VFD($GPIO);

// Configure how you have your VFD wired
$VFD->pins['Busy'] = 17;   // The GPIO connected to the Busy Signal (VFD pin 3)
$VFD->pins['Write'] = 18;  // The GPIO connected to the Write Signal (VFD pin 5)
$VFD->pins['D0'] = 5;      // The GPIO connected to VFD Data Bus 0 (VFD pin 7)
$VFD->pins['D1'] = 6;      // The GPIO connected to VFD Data Bus 1 (VFD pin 8)
$VFD->pins['D2'] = 26;     // The GPIO connected to VFD Data Bus 2 (VFD pin 9)
$VFD->pins['D3'] = 27;     // The GPIO connected to VFD Data Bus 3 (VFD pin 10)
$VFD->pins['D4'] = 22;     // The GPIO connected to VFD Data Bus 4 (VFD pin 11)
$VFD->pins['D5'] = 23;     // The GPIO connected to VFD Data Bus 5 (VFD pin 12)
$VFD->pins['D6'] = 24;     // The GPIO connected to VFD Data Bus 6 (VFD pin 13)
$VFD->pins['D7'] = 25;     // The GPIO connected to VFD Data Bus 7 (VFD pin 14)

// Initialise your VFD
$VFD->initialise();

// Send some text
$VFD->output('Hello World');

// Wait a second so we can view it
sleep(1);

// Clear the screen
$VFD->clear();

// Output a couple of lines
$VFD->output('Testing'.PHP_EOL.'My Display');

// Output a blank line
$VFD->output(PHP_EOL.PHP_EOL);

// Scroll some text
$VFD->auto_scroll(VFD::AUTO_SCROLL_HORIZONTAL, 2);
$VFD->output('Controlling the Noritake GU256x64D-7000 VFD in PHP is fun!');

// Turn scroll mode back to normal
$VFD->auto_scroll(VFD::AUTO_SCROLL_WRAP);

// Fade out
for($i = 8; $i >= 0; $i--)
{
  usleep(3000);
  $VFD->brightness($i);
}

// Fade in
for($i = 0; $i <= 8; $i++)
{
  usleep(3000);
  $VFD->brightness($i);
}

// Output a blank line and some inverse text
$VFD->output(PHP_EOL.PHP_EOL);
$VFD->inverse(TRUE);
$VFD->output('Testing'.PHP_EOL.'My Display');

// Output a blank line and some large text
$VFD->output(PHP_EOL.PHP_EOL);
$VFD->font(FALSE, TRUE, 2, 2);
$VFD->output('Testing My Display');


// Cleanup
$GPIO->cleanup();