blob: 832d609ebc2c19ef1697b91e022bf06ae8f5bb68 [file] [log] [blame]
/*
* Copyright (c) 2016 Intel Corporation.
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/zephyr.h>
#include <zephyr/device.h>
#include <zephyr/drivers/sensor.h>
#include <zephyr/sys/printk.h>
#include <zephyr/sys/util.h>
#include <zephyr/drivers/misc/grove_lcd/grove_lcd.h>
#include <stdio.h>
#include <string.h>
struct channel_info {
int chan;
};
static struct channel_info info[] = {
{ SENSOR_CHAN_AMBIENT_TEMP, },
{ SENSOR_CHAN_HUMIDITY, },
};
void main(void)
{
const struct device *glcd = DEVICE_DT_GET(DT_NODELABEL(glcd));
const struct device *th02 = DEVICE_DT_GET_ONE(hoperf_th02);
struct sensor_value val[ARRAY_SIZE(info)];
unsigned int i;
int rc;
if (!device_is_ready(th02)) {
printk("TH02 is not ready\n");
return;
}
if (!device_is_ready(glcd)) {
printk("Grove LCD not ready\n");
return;
}
/* configure LCD */
glcd_function_set(glcd, GLCD_FS_ROWS_2 | GLCD_FS_DOT_SIZE_LITTLE |
GLCD_FS_8BIT_MODE);
glcd_display_state_set(glcd, GLCD_DS_DISPLAY_ON);
while (1) {
/* fetch sensor samples */
rc = sensor_sample_fetch(th02);
if (rc) {
printk("Failed to fetch sample for device TH02 (%d)\n", rc);
}
for (i = 0U; i < ARRAY_SIZE(info); i++) {
rc = sensor_channel_get(th02, info[i].chan, &val[i]);
if (rc) {
printk("Failed to get data for device TH02 (%d)\n", rc);
continue;
}
}
char row[16];
/* clear LCD */
(void)memset(row, ' ', sizeof(row));
glcd_cursor_pos_set(glcd, 0, 0);
glcd_print(glcd, row, sizeof(row));
glcd_cursor_pos_set(glcd, 0, 1);
glcd_print(glcd, row, sizeof(row));
/* display temperature on LCD */
glcd_cursor_pos_set(glcd, 0, 0);
sprintf(row, "T:%.1f%cC", sensor_value_to_double(val),
223 /* degree symbol */);
glcd_print(glcd, row, strlen(row));
/* display humidity on LCD */
glcd_cursor_pos_set(glcd, 17 - strlen(row), 0);
sprintf(row, "RH:%.0f%c", sensor_value_to_double(val + 1),
37 /* percent symbol */);
glcd_print(glcd, row, strlen(row));
k_sleep(K_MSEC(2000));
}
}