upm/examples/c/jhd1313m1.c

/*
 * Author: Jon Trulson <jtrulson@ics.com>
 * Copyright (c) 2016 Intel Corporation.
 *
 * 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 "jhd1313m1.h"
#include "upm_utilities.h"
#include "signal.h"
#include "string.h"

bool shouldRun = true;

void sig_handler(int signo)
{
    if (signo == SIGINT)
        shouldRun = false;
}

int main(int argc, char **argv)
{
    signal(SIGINT, sig_handler);

    //! [Interesting]
    // initialize a JHD1313m1 on I2C bus 0, LCD address 0x3e, RGB
    // address 0x62
    jhd1313m1_context lcd = jhd1313m1_init(0, 0x3e, 0x62);

    if (!lcd)
    {
        printf("jhd1313m1_i2c_init() failed\n");
        return 1;
    }

    int ndx = 0;
    char str[23];
    uint8_t rgb[7][3] = {
        {0xd1, 0x00, 0x00},
        {0xff, 0x66, 0x22},
        {0xff, 0xda, 0x21},
        {0x33, 0xdd, 0x00},
        {0x11, 0x33, 0xcc},
        {0x22, 0x00, 0x66},
        {0x33, 0x00, 0x44}};
    while (shouldRun)
    {
        snprintf(str, sizeof(str), "Hello World %d", ndx);
        // Alternate rows on the LCD
        jhd1313m1_set_cursor(lcd, ndx%2, 0);
        jhd1313m1_write(lcd, str, strlen(str));
        // Change the color
        uint8_t r = rgb[ndx%7][0];
        uint8_t g = rgb[ndx%7][1];
        uint8_t b = rgb[ndx%7][2];
        jhd1313m1_set_color(lcd, r, g, b);
        // Echo via printf
        printf("Hello World %d rgb: 0x%02x%02x%02x\n", ndx++, r, g, b);

        upm_delay(1);
    }

    jhd1313m1_close(lcd);
//! [Interesting]

    return 0;
}