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完成对光照和温湿度的采集，显示到LCD上，并存放在变量

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Wang Beihong
2026-04-21 00:12:16 +08:00
parent fc906db35f
commit 08acf1b58b
6 changed files with 151 additions and 148 deletions
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112
components/bh1750/bh1750_use.c
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@@ -8,124 +8,50 @@
static const char *TAG = "BH1750_USE";
#define BH1750_READ_RETRY_COUNT 3
#define BH1750_MEASURE_DELAY_MS 200
#define BH1750_RETRY_INTERVAL_MS 30
static i2c_master_bus_handle_t s_i2c_bus_handle = NULL;
static bh1750_handle_t s_bh1750_handle = NULL;
/**
* @brief 初始化 BH1750 传感器及其所需的 I2C 总线
*/
i2c_master_bus_handle_t bh1750_get_i2c_bus_handle(void)
{
return s_i2c_bus_handle;
}
esp_err_t bh1750_user_init(void)
{
// 1. 配置并初始化 I2C 总线 (Master Bus)
if (s_i2c_bus_handle == NULL) {
i2c_master_bus_config_t bus_config = {
.clk_source = I2C_CLK_SRC_DEFAULT,
.i2c_port = I2C_NUM_0,
.scl_io_num = BH1750_I2C_SCL_IO,
.sda_io_num = BH1750_I2C_SDA_IO,
.scl_io_num = (gpio_num_t)BH1750_I2C_SCL_IO,
.sda_io_num = (gpio_num_t)BH1750_I2C_SDA_IO,
.glitch_ignore_cnt = 7,
};
ESP_ERROR_CHECK(i2c_new_master_bus(&bus_config, &s_i2c_bus_handle));
}
esp_err_t ret = i2c_new_master_bus(&bus_config, &s_i2c_bus_handle);
esp_err_t ret = bh1750_create(s_i2c_bus_handle, BH1750_I2C_ADDRESS_DEFAULT, &s_bh1750_handle);
if (ret != ESP_OK) {
ESP_LOGE(TAG, "I2C 总线初始化失败: %s", esp_err_to_name(ret));
ESP_LOGE(TAG, "BH1750 设备创建失败");
return ret;
}
// 2. 创建 BH1750 设备句柄 (使用驱动默认地址 0x23)
ret = bh1750_create(s_i2c_bus_handle, BH1750_I2C_ADDRESS_DEFAULT, &s_bh1750_handle);
if (ret != ESP_OK) {
ESP_LOGE(TAG, "BH1750 设备创建失败: %s", esp_err_to_name(ret));
if (s_i2c_bus_handle) {
i2c_del_master_bus(s_i2c_bus_handle);
s_i2c_bus_handle = NULL;
}
return ret;
return bh1750_power_on(s_bh1750_handle);
}
// 3. 初始上电
ret = bh1750_power_on(s_bh1750_handle);
if (ret == ESP_OK) {
ESP_LOGI(TAG, "BH1750 初始化成功");
}
return ret;
}
/**
* @brief 读取一次光照强度数据 (Lux)
*/
esp_err_t bh1750_user_read(float *lux)
{
if (lux == NULL) {
return ESP_ERR_INVALID_ARG;
if (s_bh1750_handle == NULL) return ESP_ERR_INVALID_STATE;
bh1750_power_on(s_bh1750_handle);
bh1750_set_measure_mode(s_bh1750_handle, BH1750_ONETIME_1LX_RES);
vTaskDelay(pdMS_TO_TICKS(180));
return bh1750_get_data(s_bh1750_handle, lux);
}
if (s_bh1750_handle == NULL) {
return ESP_ERR_INVALID_STATE;
}
esp_err_t ret = ESP_FAIL;
for (int attempt = 1; attempt <= BH1750_READ_RETRY_COUNT; ++attempt) {
// 单次模式每次读取前都先上电，避免传感器处于掉电状态导致返回 0
ret = bh1750_power_on(s_bh1750_handle);
if (ret != ESP_OK) {
ESP_LOGW(TAG, "上电失败(第%d次): %s", attempt, esp_err_to_name(ret));
vTaskDelay(pdMS_TO_TICKS(BH1750_RETRY_INTERVAL_MS));
continue;
}
// 设置测量模式：单次高分辨率模式 (1lx)
ret = bh1750_set_measure_mode(s_bh1750_handle, BH1750_ONETIME_1LX_RES);
if (ret != ESP_OK) {
ESP_LOGW(TAG, "设置测量模式失败(第%d次): %s", attempt, esp_err_to_name(ret));
vTaskDelay(pdMS_TO_TICKS(BH1750_RETRY_INTERVAL_MS));
continue;
}
// 根据数据手册，单次高分辨率模式需要约 120ms-180ms 测量时间
vTaskDelay(pdMS_TO_TICKS(BH1750_MEASURE_DELAY_MS));
ret = bh1750_get_data(s_bh1750_handle, lux);
if (ret != ESP_OK) {
ESP_LOGW(TAG, "数据读取失败(第%d次): %s", attempt, esp_err_to_name(ret));
vTaskDelay(pdMS_TO_TICKS(BH1750_RETRY_INTERVAL_MS));
continue;
}
// 在强光/室内环境下长期 0 Lux 通常不合理，重试一次可规避偶发总线抖动
if (*lux <= 0.0f && attempt < BH1750_READ_RETRY_COUNT) {
ESP_LOGW(TAG, "读取到 0 Lux，准备重试(第%d次)", attempt);
vTaskDelay(pdMS_TO_TICKS(BH1750_RETRY_INTERVAL_MS));
continue;
}
return ESP_OK;
}
if (ret == ESP_OK && *lux <= 0.0f) {
ESP_LOGW(TAG, "连续读取均为 0 Lux，请优先检查 I2C 上拉电阻和传感器供电");
return ESP_OK;
}
return ret;
}
/**
* @brief 释放 BH1750 相关资源
*/
void bh1750_user_deinit(void)
{
if (s_bh1750_handle) {
bh1750_delete(s_bh1750_handle);
s_bh1750_handle = NULL;
}
if (s_i2c_bus_handle) {
i2c_del_master_bus(s_i2c_bus_handle);
s_i2c_bus_handle = NULL;
}
ESP_LOGI(TAG, "资源已释放");
}

19
components/bh1750/include/bh1750_use.h
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@@ -2,27 +2,28 @@
#define BH1750_USE_H
#include "esp_err.h"
#include "driver/i2c_master.h"
#ifdef __cplusplus
extern "C" {
#endif
// 定义使用的 I2C 引脚（根据你的硬件实际连接修改）
#define BH1750_I2C_SCL_IO 1 // ESP32-S3 建议引脚
#define BH1750_I2C_SDA_IO 2 // ESP32-S3 建议引脚
// 定义使用的 I2C 引脚
#define BH1750_I2C_SCL_IO 1
#define BH1750_I2C_SDA_IO 2
/**
* @brief 初始化 BH1750 传感器及其所需的 I2C 总线
*
* @return esp_err_t 成功返回 ESP_OK
*/
esp_err_t bh1750_user_init(void);
/**
* @brief 获取 I2C 总线句柄，以便其他传感器（如 AHT30）共用总线
*/
i2c_master_bus_handle_t bh1750_get_i2c_bus_handle(void);
/**
* @brief 读取一次光照强度数据 (Lux)
*
* @param lux [out] 存储结果的指针
* @return esp_err_t 成功返回 ESP_OK
*/
esp_err_t bh1750_user_read(float *lux);
@@ -35,4 +36,4 @@ void bh1750_user_deinit(void);
}
#endif
#endif // BH1750_USE_H
#endif

59
dependencies.lock
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@@ -1,4 +1,28 @@
dependencies:
espressif/aht30:
component_hash: 939149f0f4a3aad63b8f9bf04218fdeb01c34062f73847fee99e90a619461ad3
dependencies:
- name: idf
require: private
version: '>=5.2'
- name: espressif/sensor_hub
registry_url: https://components.espressif.com
require: public
version: ^0.1.4
source:
registry_url: https://components.espressif.com/
type: service
version: 1.0.0
espressif/cmake_utilities:
component_hash: 351350613ceafba240b761b4ea991e0f231ac7a9f59a9ee901f751bddc0bb18f
dependencies:
- name: idf
require: private
version: '>=4.1'
source:
registry_url: https://components.espressif.com
type: service
version: 0.5.3
espressif/esp_lvgl_port:
component_hash: b6360960f47b6776462e7092861b3ea66477ffb762a01baa0aecbb3d74cd50f4
dependencies:
@@ -13,6 +37,38 @@ dependencies:
registry_url: https://components.espressif.com/
type: service
version: 2.7.2
espressif/i2c_bus:
component_hash: 804ec068d163570fd367b279a310ca383484630d2310c586b50def0bcf21de13
dependencies:
- name: espressif/cmake_utilities
registry_url: https://components.espressif.com
require: private
version: '*'
- name: idf
require: private
version: '>=4.0'
source:
registry_url: https://components.espressif.com
type: service
version: 1.5.1
espressif/sensor_hub:
component_hash: b3e72f3e2d10e165b972b17fff889f294b1a685769efacf73ec8f1e92152d1d5
dependencies:
- name: espressif/cmake_utilities
registry_url: https://components.espressif.com
require: private
version: 0.*
- name: espressif/i2c_bus
registry_url: https://components.espressif.com
require: public
version: 1.*
- name: idf
require: private
version: '>=4.4'
source:
registry_url: https://components.espressif.com
type: service
version: 0.1.4
idf:
source:
type: idf
@@ -25,8 +81,9 @@ dependencies:
type: service
version: 9.5.0
direct_dependencies:
- espressif/aht30
- espressif/esp_lvgl_port
- idf
manifest_hash: fa314ee0d60a34ffe2dea85313c7369c0c4b16079167ed05ad45e0cadad2199d
manifest_hash: 15dd4fd3d660b11406a1dde8c0ec0b63f12e3cd4064ff9026e70648e3f7bc8a3
target: esp32s3
version: 2.0.0

2
main/CMakeLists.txt
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@@ -1,3 +1,3 @@
idf_component_register(SRCS "main.cpp"
INCLUDE_DIRS "."
REQUIRES nvs_flash esp_wifi sntp_time esp_event esp_system wifi-connect ui lvgl_st7789_use efuse relay_ctrl)
REQUIRES nvs_flash esp_wifi sntp_time aht30 esp_event esp_system wifi-connect ui lvgl_st7789_use efuse relay_ctrl bh1750)

1
main/idf_component.yml
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@@ -15,3 +15,4 @@ dependencies:
# # All dependencies of `main` are public by default.
# public: true
espressif/esp_lvgl_port: ^2.7.2
espressif/aht30: ^1.0.0

94
main/main.cpp
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@@ -17,14 +17,14 @@
#include "esp_system.h"
#include "esp_efuse.h"
#include "esp_efuse_table.h"
#include "bh1750_use.h"
#include "aht30.h"
#define TAG "MAIN"
typedef struct
{
typedef struct {
char time_str[32];
char mac_str[20];
char uid_str[20];
float lux;
float temp;
float humidity;
} env_data_t;
@@ -35,22 +35,16 @@ static SemaphoreHandle_t s_env_data_lock = NULL;
static bool wait_for_wifi_connected(TickType_t timeout_ticks)
{
const TickType_t start_ticks = xTaskGetTickCount();
while ((xTaskGetTickCount() - start_ticks) < timeout_ticks)
{
if (wifi_connect_get_status() == WIFI_CONNECT_STATUS_CONNECTED)
{
return true;
}
while ((xTaskGetTickCount() - start_ticks) < timeout_ticks) {
if (wifi_connect_get_status() == WIFI_CONNECT_STATUS_CONNECTED) return true;
vTaskDelay(pdMS_TO_TICKS(200));
}
return wifi_connect_get_status() == WIFI_CONNECT_STATUS_CONNECTED;
return false;
}
static void env_data_update_system_info(void)
{
if (s_env_data_lock == NULL)
return;
if (s_env_data_lock == NULL) return;
time_t now;
struct tm timeinfo;
time(&now);
@@ -60,17 +54,13 @@ static void env_data_update_system_info(void)
xSemaphoreTake(s_env_data_lock, portMAX_DELAY);
strncpy(s_env_data.time_str, time_buf, sizeof(s_env_data.time_str));
xSemaphoreGive(s_env_data_lock);
set_var_local_time(s_env_data.time_str);
}
static void ui_task(void *arg)
{
(void)arg;
for (;;)
{
for (;;) {
env_data_update_system_info();
lvgl_port_lock(0);
ui_tick();
@@ -83,42 +73,70 @@ extern "C" void app_main(void)
{
vTaskDelay(pdMS_TO_TICKS(100));
ESP_LOGI(TAG, "--- APP STARTING ---");
s_env_data_lock = xSemaphoreCreateMutex();
// 2. 初始化 Wi-Fi
// 1. 初始化 Wi-Fi
ESP_ERROR_CHECK(wifi_connect_init());
// 3. 初始化显示屏和 LVGL
// 2. 初始化显示屏和 LVGL
start_lvgl_demo();
// 4. 初始化 UI
// 3. 初始化 UI
lvgl_port_lock(100 / portTICK_PERIOD_MS);
ui_init();
lvgl_port_unlock();
set_var_door_status("关闭");
set_var_food_status("良好");
set_var_hum_status("有人");
set_var_hot_status("开");
set_var_cool_status("关");
set_var_fan_status("开");
set_var_light_status("开");
// 7. 创建 UI 任务
xTaskCreate(ui_task, "ui_task", 8192, NULL, 5, NULL);
if (wait_for_wifi_connected(pdMS_TO_TICKS(15000)))
{
ESP_LOGI(TAG, "IP: %s", wifi_connect_get_ip());
if (wait_for_wifi_connected(pdMS_TO_TICKS(15000))) {
set_var_system_ip(wifi_connect_get_ip());
}
// 1. 初始化继电器 (避开 Octal PSRAM/Flash 所占用的引脚)
// ESP32-S3 N16R8 使用 8线 PSRAM，占用 GPIO 33-37
// 4. 初始化继电器 (避开 PSRAM 引脚)
static const relay_config_t relay_cfg[RELAY_CTRL_ID_MAX] = {
{.pin = GPIO_NUM_38, .active_high = true}, // 示例改为常用 GPIO
{.pin = GPIO_NUM_38, .active_high = true},
{.pin = GPIO_NUM_39, .active_high = false},
{.pin = GPIO_NUM_40, .active_high = false},
};
ESP_ERROR_CHECK(relay_ctrl_init(relay_cfg));
relay_ctrl_init(relay_cfg);
// 5. 初始化 I2C 总线并注册传感器 (共享总线)
ESP_ERROR_CHECK(bh1750_user_init());
i2c_master_bus_handle_t i2c_bus = bh1750_get_i2c_bus_handle();
// AHT30 挂载到同一条 I2C 总线上
aht30_handle_t aht30_dev = NULL;
ESP_ERROR_CHECK(aht30_create(i2c_bus, AHT30_I2C_ADDRESS, &aht30_dev));
// 6. 创建传感器读取任务
xTaskCreate([](void *arg) {
aht30_handle_t aht30 = (aht30_handle_t)arg;
for (;;) {
float lux = 0.0f, temp = 0.0f, hum = 0.0f;
// 读取 BH1750
if (bh1750_user_read(&lux) == ESP_OK) {
set_var_light_val(lux);
}
// 读取 AHT30
if (aht30_get_temperature_humidity_value(aht30, &temp, &hum) == ESP_OK) {
set_var_temp(temp);
set_var_humity_val(hum);
}
// 数据存入共享结构体
if (s_env_data_lock) {
xSemaphoreTake(s_env_data_lock, portMAX_DELAY);
s_env_data.lux = lux;
s_env_data.temp = temp;
s_env_data.humidity = hum;
xSemaphoreGive(s_env_data_lock);
}
vTaskDelay(pdMS_TO_TICKS(1000));
}
}, "sensor_task", 4096*2, (void*)aht30_dev, 6, NULL);
}