main.c

/*
 * Copyright (c) 2023 Nordic Semiconductor ASA
 *
 * SPDX-License-Identifier: Apache-2.0
 */

#include <zephyr/bluetooth/bluetooth.h>
#include <zephyr/bluetooth/uuid.h>
//#################################################
#include <zephyr/drivers/adc.h>
#include <zephyr/kernel.h>
#include <stdio.h>
#include <stdint.h>
//------------------------------------------------
//------------------------------------------------
#include <zephyr/device.h>
#include <zephyr/devicetree.h>
#include <zephyr/drivers/sensor.h>
//------------------------------------------------
//------------------------------------------------


/* ADC node from the devicetree. */
#define ADC_NODE DT_ALIAS(adc0)

/* Data of ADC device specified in devicetree. */
static const struct device *adc = DEVICE_DT_GET(ADC_NODE);

/* Configuration of the ADC channel */
static const struct adc_channel_cfg channel_cfg = {
    .gain = ADC_GAIN_1_6,
    .reference = ADC_REF_INTERNAL,
    .acquisition_time = ADC_ACQ_TIME_DEFAULT,
    .channel_id = 0,
    .input_positive = SAADC_CH_PSELP_PSELP_VDD,
};

#define ADC_RESOLUTION 12
#define BUFFER_SIZE 1 /* We only need one sample */

static int16_t sample_buffer[BUFFER_SIZE];

//#################################################

#define SERVICE_DATA_LEN        15
#define SERVICE_UUID            0xfcd2      /* BTHome service UUID */
#define IDX_TEMPL               4           /* Index of lo byte of temp in service data*/
#define IDX_TEMPH               5           /* Index of hi byte of temp in service data*/
#define IDX_HUML 				7 			/* Index of lo byte of humidity in service data */
#define IDX_HUMH 				8			/* Index of hi byte of humidity in service data */
#define IDX_PRESL      			10         	/* Index of lo byte of pressure in service data (in hPa */                                               
#define IDX_PRESM				11 			/* Index of hi byte of pressure in service data (in hPa)*/
#define IDX_PRESH 				12 			/* Index of hi byte of pressure in service data (in hPa) */
#define BAT              	 	14          /* Index of hi byte of temp in service data*/


#define ADV_PARAM BT_LE_ADV_PARAM(BT_LE_ADV_OPT_USE_IDENTITY, \
				  BT_GAP_ADV_SLOW_INT_MIN, \
				  BT_GAP_ADV_SLOW_INT_MAX, NULL)


static uint8_t service_data[SERVICE_DATA_LEN] = {
	BT_UUID_16_ENCODE(SERVICE_UUID),
	0x40,
	0x02,	/* Temperature */
	0xc4,	/* Low byte */
	0x00,   /* High byte */
	0x03,	/* Humidity */
	0xbf,	/* 50.55%  low byte*/
	0x13,   /* 50.55%  high byte*/