Danger-alarm/SOFTWARE-FreeRTOS/Source/DS18B20.cpp

#include "DS18B20.hpp"
#include "common.hpp"

QueueHandle_t xQueue;

// 温度传感器
void DS18B20(void *pvParameters)
{
    float TEMPERATURE = -1;

    One_wire one_wire(DS18B20_PIN);
    one_wire.init();
    rom_address_t address {
    };

    _printTaskStackHighWaterMark("DS18B20");

    while (1) {
        one_wire.single_device_read_rom(address);
        one_wire.convert_temperature(address, true, false);
        TEMPERATURE = one_wire.temperature(address);

        printf("Device Address: %02x%02x%02x%02x%02x%02x%02x%02x Temperature: %3.1f°C\n", address.rom[0], address.rom[1], address.rom[2], address.rom[3], address.rom[4], address.rom[5], address.rom[6], address.rom[7], one_wire.temperature(address));

        // 发送数据到队列
        xQueueSend(xQueue, &TEMPERATURE, portMAX_DELAY);
        vTaskDelay(pdMS_TO_TICKS(1000));

        //_printTaskStackHighWaterMark("DS18B20");
        vTaskDelay(pdMS_TO_TICKS(3000)); // 非阻塞延时
    }

    return;
}