| /* |
| * Copyright (c) 2020 Sven Herrmann |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #include <zephyr.h> |
| #include <device.h> |
| #include <drivers/sensor.h> |
| #include <stdio.h> |
| |
| void main(void) |
| { |
| const char *const devname = DT_LABEL(DT_INST(0, honeywell_mpr)); |
| const struct device *dev = device_get_binding(devname); |
| int rc; |
| |
| if (dev == NULL) { |
| printf("Device %s not found.\n", devname); |
| return; |
| } |
| |
| while (1) { |
| struct sensor_value pressure; |
| |
| rc = sensor_sample_fetch(dev); |
| if (rc != 0) { |
| printf("sensor_sample_fetch error: %d\n", rc); |
| break; |
| } |
| |
| rc = sensor_channel_get(dev, SENSOR_CHAN_PRESS, &pressure); |
| if (rc != 0) { |
| printf("sensor_channel_get error: %d\n", rc); |
| break; |
| } |
| |
| printf("pressure: %u.%u kPa\n", pressure.val1, pressure.val2); |
| |
| k_sleep(K_SECONDS(1)); |
| } |
| } |