129 lines
4.4 KiB
C
129 lines
4.4 KiB
C
/*
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* Copyright (c) 2015, Zolertia <http://www.zolertia.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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*/
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/**
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* \addtogroup zoul-examples
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* @{
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*
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* \defgroup zoul-rgb-lcd-test Test the LCD with RGB backlight
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*
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* Demonstrates the use of the LCD with on-board RGB backlight
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* @{
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*
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* \file
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* A quick program for testing the Grove's LCD with RGB backlight
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* \author
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* Antonio Lignan <alinan@zolertia.com>
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*/
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/*---------------------------------------------------------------------------*/
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#include <stdio.h>
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#include "contiki.h"
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#include "dev/rgb-bl-lcd.h"
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#include "dev/button-sensor.h"
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/*---------------------------------------------------------------------------*/
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#define SCROLL_PERIOD (CLOCK_SECOND / 6)
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/*---------------------------------------------------------------------------*/
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PROCESS(remote_lcd_process, "Grove LCD backlight test");
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AUTOSTART_PROCESSES(&remote_lcd_process);
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/*---------------------------------------------------------------------------*/
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static struct etimer et;
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/*---------------------------------------------------------------------------*/
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PROCESS_THREAD(remote_lcd_process, ev, data)
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{
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PROCESS_BEGIN();
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static uint8_t i = 0;
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static char buf[16];
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static uint16_t counter;
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/* Enable the LCD, default configuration is 2 rows and 16 columns, RGB
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* backlight on with red color, no cursor/blink */
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SENSORS_ACTIVATE(rgb_bl_lcd);
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/* Set the cursor to column 17 and row 0 to not make it visible yet */
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lcd_set_cursor(17, LCD_RGB_1ST_ROW);
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lcd_write("Hello Contiki!");
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/* Now make the text appear from right to left and stay aligned left */
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while(i < 16) {
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etimer_set(&et, SCROLL_PERIOD);
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PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
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lcd_scroll_display(LCD_RGB_CURSOR_MOVE_LEFT, 1);
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i++;
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etimer_restart(&et);
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}
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/* wait 2 seconds */
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etimer_set(&et, (CLOCK_SECOND * 2));
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PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
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/* Clear the welcome message */
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lcd_clear_display();
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/* Spin the timer and print the counter value on the LCD */
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etimer_set(&et, CLOCK_SECOND);
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lcd_set_cursor(0, LCD_RGB_1ST_ROW);
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lcd_write("Press the button!");
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while(1) {
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PROCESS_YIELD();
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if(ev == PROCESS_EVENT_TIMER) {
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snprintf(buf, 15, "Counter: %05u", counter);
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lcd_set_cursor(0, LCD_RGB_2ND_ROW);
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lcd_write(buf);
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printf("Counter: %05u\n", counter);
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counter++;
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etimer_restart(&et);
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} else if(ev == sensors_event) {
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if(data == &button_sensor) {
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if(button_sensor.value(BUTTON_SENSOR_VALUE_TYPE_LEVEL) ==
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BUTTON_SENSOR_PRESSED_LEVEL) {
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printf("Button pressed!!\n");
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lcd_set_cursor(0, LCD_RGB_1ST_ROW);
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lcd_write("Button pressed!!");
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} else {
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lcd_set_cursor(0, LCD_RGB_1ST_ROW);
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lcd_write("Press the button!");
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}
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}
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}
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}
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PROCESS_END();
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}
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/*---------------------------------------------------------------------------*/
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/**
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* @}
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* @}
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*/
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