This sketch demonstrates how to use the Grove - 0.54 inch Red Quad Alphanumeric Display.

06.21_-_Grove_Quad_Alphaneumerical_positions.ino

/*  06.21 - Grove - 0.54 inch Red Quad Alphanumeric Display position demo
 *   
   This sketch demonstrates how to use the Grove - 0.54 inch Red Quad Alphanumeric Display.

   It will print letters and numbers at specific positions, and also control the
   blink rate and dots.

   
   Components
   ----------
    
    - Grove Base Shield
    - An Arduino Uno compatible board (such as Arduino/Genuino Uno or Seeeduino)
    - Grove - 0.54 inch Red Quad Alphanumeric Display
    - One Grove cable
    
    IDE
    ---
    
    Arduino IDE
    
    Libraries
    ---------
    
    - Wire.h (part of the Arduino IDE)
    - grove_quad_alphanumeric_display.h (Get it from https://github.com/Seeed-Studio/Seeed_Alphanumeric_Display_HT16K33)
    
    Connections
    -----------
    
    Use a Grove cable to connect the module to any Base Shield I2C connector.
    
    Other information
    -----------------
    
    - Use this sketch along side the video lecture 06.12 of Grove For Busy People
    - Grove documentation: http://wiki.seeedstudio.com/Grove-0.54_inch_Red_Quad_Alphanumeric_Display/
    - Grove component: https://txplo.re/2539e

    Github Gist
    -----------
    <script src="https://gist.github.com/futureshocked/c51f14f2c9ba7f10ccc5e08b3b77f4b4.js"></script>

    https://gist.github.com/futureshocked/c51f14f2c9ba7f10ccc5e08b3b77f4b4
        
    
    For course information, please go to https://techexplorations.com/product/grove-for-busy-people/
        
    Created on July 5 2019 by Peter Dalmaris
*/

/*
 * display_basic.ino
 * Example for digital tube.
 *  
 * Copyright (c) 2018 Seeed Technology Co., Ltd.
 * Website    : www.seeed.cc
 * Author     : downey
 * Create Time: sep. 2018
 * Change Log :
 *
 * The MIT License (MIT)
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
 
#include <Wire.h>


#include "grove_alphanumeric_display.h"

Seeed_Digital_Tube tube;

void setup()
{
    Wire.begin();
    
    // If using two digital tubes, use this configuration.
    // tube.setTubeType(TYPE_2,TYPE_2_DEFAULT_I2C_ADDR);

    // If using four digital tubes, use this configuration.
    tube.setTubeType(TYPE_4,TYPE_4_DEFAULT_I2C_ADDR);   

    tube.setBrightness(15);
    tube.setBlinkRate(BLINK_1HZ);
}

void displayCustom()
{
    tube.clearBuf();
    tube.setTubeSingleNum(FIRST_TUBE,1);
    tube.setTubeSingleChar(SECOND_TUBE,'T');

    tube.setTubeSingleNum(THIRD_TUBE,3);
    tube.setTubeSingleNum(FOURTH_TUBE,4);

    // The location of point is different between two&four digital tubes.
    tube.setPoint(true,true);

    tube.display();
}

void loop()
{
    displayCustom();
    delay(2000);
}