nanoFramework.Iot.Device.Ds1621 1.0.555

Ds1621 - 1-Wire 数字温度计，具有可编程分辨率

Ds1621数字温度计提供9位到12位的摄氏度温度测量，并具有带有非易失性用户可编程的上限和下限触发点的报警功能。

文档

数据表

原始代码是为ESP32编写的

用法

重要：在创建I2cDevice之前，请确保正确设置ESP32的I2C引脚。为此，请安装nanoFramework.Hardware.Esp32 NuGet，并使用Configuration类配置引脚。

// When connecting to an ESP32 device you will need to configure the I2C GPIOs used for the bus.
Configuration.SetPinFunction(Gpio.IO21, DeviceFunction.I2C1_DATA);
Configuration.SetPinFunction(Gpio.IO22, DeviceFunction.I2C1_CLOCK);

对于STM32等其他设备，请确保您正在使用您要使用的I2C总线的预设引脚。

以下示例演示了使用Ds1621的温度和报警功能。

using System;
using System.Device.I2c;
using System.Diagnostics;
using System.Threading;
using Iot.Device.Ds1621;
using nanoFramework.Hardware.Esp32;
using UnitsNet;

string alarmState;

// Setup ESP32 I2C port.
Configuration.SetPinFunction(Gpio.IO21, DeviceFunction.I2C1_DATA);
Configuration.SetPinFunction(Gpio.IO22, DeviceFunction.I2C1_CLOCK);

// Setup Ds1621 device.
I2cConnectionSettings i2cSettings = new I2cConnectionSettings(1, Ds1621.DefaultI2cAddress);
I2cDevice i2cDevice = new I2cDevice(i2cSettings);

Ds1621 thermometer = new Ds1621(i2cDevice, MeasurementMode.Single);

// Set temperature alarms.
thermometer.LowTemperatureAlarm = Temperature.FromDegreesFahrenheit(65);
thermometer.HighTemperatureAlarm = Temperature.FromDegreesFahrenheit(80);

while (true)
{
    // Start temperature conversion.
    thermometer.MeasureTemperature();

    // Wait for temperature conversion to complete.
    while (thermometer.IsMeasuringTemperature)
    {
        Thread.Sleep(10);
    }

    Temperature temperature = thermometer.GetTemperature();

    // Check temperature alarm states.
    if (thermometer.HasLowTemperatureAlarm)
    {
        alarmState = "[Low Temperature]";
    }
    else if (thermometer.HasHighTemperatureAlarm)
    {
        alarmState = "[High Temperature]";
    }
    else
    {
        alarmState = string.Empty;
    }

    Debug.WriteLine($"{DateTime.UtcNow} : {temperature.DegreesCelsius:F1}�C / {temperature.DegreesFahrenheit:F1}�F {alarmState}");

    Thread.Sleep(1000);
}