79e6b0e0f6
As of today <zephyr/zephyr.h> is 100% equivalent to <zephyr/kernel.h>. This patch proposes to then include <zephyr/kernel.h> instead of <zephyr/zephyr.h> since it is more clear that you are including the Kernel APIs and (probably) nothing else. <zephyr/zephyr.h> sounds like a catch-all header that may be confusing. Most applications need to include a bunch of other things to compile, e.g. driver headers or subsystem headers like BT, logging, etc. The idea of a catch-all header in Zephyr is probably not feasible anyway. Reason is that Zephyr is not a library, like it could be for example `libpython`. Zephyr provides many utilities nowadays: a kernel, drivers, subsystems, etc and things will likely grow. A catch-all header would be massive, difficult to keep up-to-date. It is also likely that an application will only build a small subset. Note that subsystem-level headers may use a catch-all approach to make things easier, though. NOTE: This patch is **NOT** removing the header, just removing its usage in-tree. I'd advocate for its deprecation (add a #warning on it), but I understand many people will have concerns. Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
71 lines
1.4 KiB
C
71 lines
1.4 KiB
C
/*
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* Copyright (c) 2019 Nordic Semiconductor ASA
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/kernel.h>
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#include <zephyr/device.h>
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#include <zephyr/drivers/sensor.h>
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#include <stdio.h>
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static const char *now_str(void)
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{
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static char buf[16]; /* ...HH:MM:SS.MMM */
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uint32_t now = k_uptime_get_32();
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unsigned int ms = now % MSEC_PER_SEC;
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unsigned int s;
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unsigned int min;
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unsigned int h;
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now /= MSEC_PER_SEC;
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s = now % 60U;
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now /= 60U;
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min = now % 60U;
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now /= 60U;
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h = now;
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snprintf(buf, sizeof(buf), "%u:%02u:%02u.%03u",
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h, min, s, ms);
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return buf;
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}
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void main(void)
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{
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const struct device *const dht22 = DEVICE_DT_GET_ONE(aosong_dht);
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if (!device_is_ready(dht22)) {
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printf("Device %s is not ready\n", dht22->name);
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return;
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}
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while (true) {
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int rc = sensor_sample_fetch(dht22);
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if (rc != 0) {
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printf("Sensor fetch failed: %d\n", rc);
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break;
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}
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struct sensor_value temperature;
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struct sensor_value humidity;
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rc = sensor_channel_get(dht22, SENSOR_CHAN_AMBIENT_TEMP,
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&temperature);
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if (rc == 0) {
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rc = sensor_channel_get(dht22, SENSOR_CHAN_HUMIDITY,
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&humidity);
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}
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if (rc != 0) {
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printf("get failed: %d\n", rc);
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break;
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}
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printf("[%s]: %.1f Cel ; %.1f %%RH\n",
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now_str(),
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sensor_value_to_double(&temperature),
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sensor_value_to_double(&humidity));
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k_sleep(K_SECONDS(2));
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}
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}
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