| /* |
| * Copyright (c) 2022 STMicroelectronics |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #include <zephyr/zephyr.h> |
| #include <zephyr/device.h> |
| #include <zephyr/drivers/sensor.h> |
| #include <zephyr/sys/printk.h> |
| |
| void main(void) |
| { |
| struct sensor_value val; |
| int rc; |
| const struct device *dev = DEVICE_DT_GET_ONE(st_stm32_vbat); |
| |
| if (!device_is_ready(dev)) { |
| printk("VBAT sensor is not ready\n"); |
| return; |
| } |
| |
| printk("STM32 Vbat sensor test\n"); |
| |
| /* fetch sensor samples */ |
| rc = sensor_sample_fetch(dev); |
| if (rc) { |
| printk("Failed to fetch sample (%d)\n", rc); |
| return; |
| } |
| |
| rc = sensor_channel_get(dev, SENSOR_CHAN_VOLTAGE, &val); |
| if (rc) { |
| printk("Failed to get data (%d)\n", rc); |
| return; |
| } |
| |
| printk("Current Vbat voltage: %.2f V\n", sensor_value_to_double(&val)); |
| } |