SKU:RB-02S112 電子羅盤
來自ALSROBOT WiKi
目錄 |
產(chǎn)品概述
電子羅盤，又稱數(shù)字羅盤，在現(xiàn)代技術(shù)條件中電子羅盤作為導航儀器或姿態(tài)傳感器已被廣泛應用。此款傳感器是三軸數(shù)字羅盤，采用I2C串行總線接口，芯片選用Honeywell HMC5883L，具有高精度，偏移抑制等特點。此傳感器具有12位ADC、低噪聲、自檢測、低電壓操作和寬磁場范圍等特點，并且內(nèi)置驅(qū)動電路，采用I2C數(shù)字接口，體積小，輕便，操作簡單。
產(chǎn)品參數(shù)
- 產(chǎn)品類型：數(shù)字傳感器
- 接口類型：KF2510
- 工作電壓：5V
- 工作溫度：-25℃～＋85℃
- 產(chǎn)品尺寸（mm）：30x25mm
- 固定孔尺寸（mm）：M3 * 4個
- 固定孔間距：23 * 18 mm
- 重量（g）：3g
使用方法
1、測試環(huán)境
- 硬件環(huán)境：Arduino 、電子羅盤
- 軟件環(huán)境：Arduino IDE 1.7.7
2、引腳定義
- SDA：I2C總線的數(shù)據(jù)線引腳
- SCL：2C總線的時鐘信號引腳
- -：電源負極
- +：電源正極
3、硬件連接
4、測試程序
#include <Wire.h>
#include <HMC5883L.h>
HMC5883L compass;
void setup()
{
Serial.begin(9600);
// Initialize HMC5883L
Serial.println("Initialize HMC5883L");
while (!compass.begin())
{
Serial.println("Could not find a valid HMC5883L sensor, check wiring!");
delay(500);
}
// Set measurement range
// +/- 0.88 Ga: HMC5883L_RANGE_0_88GA
// +/- 1.30 Ga: HMC5883L_RANGE_1_3GA (default)
// +/- 1.90 Ga: HMC5883L_RANGE_1_9GA
// +/- 2.50 Ga: HMC5883L_RANGE_2_5GA
// +/- 4.00 Ga: HMC5883L_RANGE_4GA
// +/- 4.70 Ga: HMC5883L_RANGE_4_7GA
// +/- 5.60 Ga: HMC5883L_RANGE_5_6GA
// +/- 8.10 Ga: HMC5883L_RANGE_8_1GA
compass.setRange(HMC5883L_RANGE_1_3GA);
// Set measurement mode
// Idle mode: HMC5883L_IDLE
// Single-Measurement: HMC5883L_SINGLE
// Continuous-Measurement: HMC5883L_CONTINOUS (default)
compass.setMeasurementMode(HMC5883L_CONTINOUS);
// Set data rate
// 0.75Hz: HMC5883L_DATARATE_0_75HZ
// 1.50Hz: HMC5883L_DATARATE_1_5HZ
// 3.00Hz: HMC5883L_DATARATE_3HZ
// 7.50Hz: HMC5883L_DATARATE_7_50HZ
// 15.00Hz: HMC5883L_DATARATE_15HZ (default)
// 30.00Hz: HMC5883L_DATARATE_30HZ
// 75.00Hz: HMC5883L_DATARATE_75HZ
compass.setDataRate(HMC5883L_DATARATE_15HZ);
// Set number of samples averaged
// 1 sample: HMC5883L_SAMPLES_1 (default)
// 2 samples: HMC5883L_SAMPLES_2
// 4 samples: HMC5883L_SAMPLES_4
// 8 samples: HMC5883L_SAMPLES_8
compass.setSamples(HMC5883L_SAMPLES_1);
// Check settings
checkSettings();
}
void checkSettings()
{
Serial.print("Selected range: ");
switch (compass.getRange())
{
case HMC5883L_RANGE_0_88GA: Serial.println("0.88 Ga"); break;
case HMC5883L_RANGE_1_3GA: Serial.println("1.3 Ga"); break;
case HMC5883L_RANGE_1_9GA: Serial.println("1.9 Ga"); break;
case HMC5883L_RANGE_2_5GA: Serial.println("2.5 Ga"); break;
case HMC5883L_RANGE_4GA: Serial.println("4 Ga"); break;
case HMC5883L_RANGE_4_7GA: Serial.println("4.7 Ga"); break;
case HMC5883L_RANGE_5_6GA: Serial.println("5.6 Ga"); break;
case HMC5883L_RANGE_8_1GA: Serial.println("8.1 Ga"); break;
default: Serial.println("Bad range!");
}
Serial.print("Selected Measurement Mode: ");
switch (compass.getMeasurementMode())
{
case HMC5883L_IDLE: Serial.println("Idle mode"); break;
case HMC5883L_SINGLE: Serial.println("Single-Measurement"); break;
case HMC5883L_CONTINOUS: Serial.println("Continuous-Measurement"); break;
default: Serial.println("Bad mode!");
}
Serial.print("Selected Data Rate: ");
switch (compass.getDataRate())
{
case HMC5883L_DATARATE_0_75_HZ: Serial.println("0.75 Hz"); break;
case HMC5883L_DATARATE_1_5HZ: Serial.println("1.5 Hz"); break;
case HMC5883L_DATARATE_3HZ: Serial.println("3 Hz"); break;
case HMC5883L_DATARATE_7_5HZ: Serial.println("7.5 Hz"); break;
case HMC5883L_DATARATE_15HZ: Serial.println("15 Hz"); break;
case HMC5883L_DATARATE_30HZ: Serial.println("30 Hz"); break;
case HMC5883L_DATARATE_75HZ: Serial.println("75 Hz"); break;
default: Serial.println("Bad data rate!");
}
Serial.print("Selected number of samples: ");
switch (compass.getSamples())
{
case HMC5883L_SAMPLES_1: Serial.println("1"); break;
case HMC5883L_SAMPLES_2: Serial.println("2"); break;
case HMC5883L_SAMPLES_4: Serial.println("4"); break;
case HMC5883L_SAMPLES_8: Serial.println("8"); break;
default: Serial.println("Bad number of samples!");
}
}
void loop()
{
Vector raw = compass.readRaw();
Vector norm = compass.readNormalize();
Serial.print(" Xraw = ");
Serial.print(raw.XAxis);
Serial.print(" Yraw = ");
Serial.print(raw.YAxis);
Serial.print(" Zraw = ");
Serial.print(raw.ZAxis);
Serial.print(" Xnorm = ");
Serial.print(norm.XAxis);
Serial.print(" Ynorm = ");
Serial.print(norm.YAxis);
Serial.print(" ZNorm = ");
Serial.print(norm.ZAxis);
Serial.println();
delay(100);
}
5、程序效果
在串口監(jiān)控窗口中分別打印X、Y、Z軸輸出值,如圖所示：
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