ef964ca4e1
Update sample to use DEVICE_DT_GET_ONE to remove usage of device_get_binding. Additionally simplfy the sample to just access a single TH02 device. Signed-off-by: Kumar Gala <galak@kernel.org>
88 lines
2.0 KiB
C
88 lines
2.0 KiB
C
/*
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* Copyright (c) 2016 Intel Corporation.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/zephyr.h>
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#include <zephyr/device.h>
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#include <zephyr/drivers/sensor.h>
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#include <zephyr/sys/printk.h>
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#include <zephyr/sys/util.h>
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#include <zephyr/drivers/misc/grove_lcd/grove_lcd.h>
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#include <stdio.h>
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#include <string.h>
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struct channel_info {
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int chan;
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};
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static struct channel_info info[] = {
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{ SENSOR_CHAN_AMBIENT_TEMP, },
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{ SENSOR_CHAN_HUMIDITY, },
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};
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void main(void)
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{
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const struct device *glcd = DEVICE_DT_GET(DT_NODELABEL(glcd));
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const struct device *th02 = DEVICE_DT_GET_ONE(hoperf_th02);
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struct sensor_value val[ARRAY_SIZE(info)];
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unsigned int i;
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int rc;
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if (!device_is_ready(th02)) {
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printk("TH02 is not ready\n");
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return;
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}
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if (!device_is_ready(glcd)) {
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printk("Grove LCD not ready\n");
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return;
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}
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/* configure LCD */
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glcd_function_set(glcd, GLCD_FS_ROWS_2 | GLCD_FS_DOT_SIZE_LITTLE |
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GLCD_FS_8BIT_MODE);
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glcd_display_state_set(glcd, GLCD_DS_DISPLAY_ON);
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while (1) {
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/* fetch sensor samples */
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rc = sensor_sample_fetch(th02);
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if (rc) {
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printk("Failed to fetch sample for device TH02 (%d)\n", rc);
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}
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for (i = 0U; i < ARRAY_SIZE(info); i++) {
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rc = sensor_channel_get(th02, info[i].chan, &val[i]);
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if (rc) {
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printk("Failed to get data for device TH02 (%d)\n", rc);
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continue;
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}
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}
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char row[16];
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/* clear LCD */
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(void)memset(row, ' ', sizeof(row));
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glcd_cursor_pos_set(glcd, 0, 0);
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glcd_print(glcd, row, sizeof(row));
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glcd_cursor_pos_set(glcd, 0, 1);
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glcd_print(glcd, row, sizeof(row));
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/* display temperature on LCD */
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glcd_cursor_pos_set(glcd, 0, 0);
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sprintf(row, "T:%.1f%cC", sensor_value_to_double(val),
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223 /* degree symbol */);
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glcd_print(glcd, row, strlen(row));
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/* display humidity on LCD */
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glcd_cursor_pos_set(glcd, 17 - strlen(row), 0);
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sprintf(row, "RH:%.0f%c", sensor_value_to_double(val + 1),
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37 /* percent symbol */);
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glcd_print(glcd, row, strlen(row));
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k_sleep(K_MSEC(2000));
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}
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}
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