nanoFramework.Iot.Device.Adxl345 1.2.590

ADXL345 - 加速计

ADXL345是一款小型、轻薄、低功耗的3轴加速度计，分辨率高达（13位），可测量最大±16g的加速度。

文档

中文

英文

传感器图像

用法

重要：在创建 SpiDevice 之前，请确保正确设置 SPI 引脚，尤其是 ESP32 的 SPI 引脚，并确保安装 nanoFramework.Hardware.ESP32 nuget

//////////////////////////////////////////////////////////////////////
// when connecting to an ESP32 device, need to configure the SPI GPIOs
// used for the bus
Configuration.SetPinFunction(21, DeviceFunction.SPI1_MOSI);
Configuration.SetPinFunction(22, DeviceFunction.SPI1_MISO);
Configuration.SetPinFunction(23, DeviceFunction.SPI1_CLOCK);
// Make sure as well you are using the right chip select

对于其他设备，如STM32，请确保您使用您要使用的 SPI 总线的预设引脚。芯片选择也可以预先设置。

SpiConnectionSettings settings = new SpiConnectionSettings(1, 42)
{
    ClockFrequency = Adxl345.SpiClockFrequency,
    Mode = Adxl345.SpiMode
};

var device = SpiDevice.Create(settings);

// set gravity measurement range ±4G
using (Adxl345 sensor = new Adxl345(device, GravityRange.Range04))
{
    // read acceleration
    Vector3 data = sensor.Acceleration;

    //use sensor
}

示例

硬件需求

• ADXL345
• 公/母跳线

电路

• VCC - 3.3 V
• GND - GND
• CS - CS
• SDO - SPI1 MISO
• SDA - SPI1 MOSI
• SCL - SPI1 SCLK

代码

SpiConnectionSettings settings = new SpiConnectionSettings(1, 42)
{
    ClockFrequency = Adxl345.SpiClockFrequency,
    Mode = Adxl345.SpiMode
};
var device = SpiDevice.Create(settings);

// Set gravity measurement range ±4G
using (Adxl345 sensor = new Adxl345(device, GravityRange.Range04))
{
    // loop
    while (true)
    {
        // read data
        Vector3 data = sensor.Acceleration;

        Debug.WriteLine($"X: {data.X.ToString("0.00")} g");
        Debug.WriteLine($"Y: {data.Y.ToString("0.00")} g");
        Debug.WriteLine($"Z: {data.Z.ToString("0.00")} g");
        Debug.WriteLine();

        // wait for 500ms
        Thread.Sleep(500);
    }
}

结果