1. はじめに
あいさつ
ひょんなことからArduinoを使って遊ぶことになったので
その備忘録としてまとめていこうかと。
の第四回です。
今回の内容
今回は、地磁気センサー(HMC5883L)の値を取得するところまで。
参考ページ
2. 配線
写真と表の表に配線する。
参考ページ1だとArduino UNOだが、私はMegaだったのでSCL,SDAのピン番号が違う。参考ページ2を参照。
| arduino mega | HMC5883L |
|---|---|
| 5V | Vcc |
| GND | GND |
| 21(SCL) | SCL |
| 20(SDA) | SDA |
3. スケッチ(プログラム)
参考ページ1の通りここからDownloadして、HMC5883LフォルダをArduino 開発環境(Arduino IDE)の「libraries」フォルダーにコピーする。
あとは、HMC5883L_Exampleを開いてArduinoに書き込めば動く。
説明
割愛
動作
下記みたいな出力がされます。
Starting the I2C interface.
Constructing new HMC5883L
Setting scale to +/- 1.3 Ga
Setting measurement mode to continous.
Raw: 599 659 -830 Scaled: 551.08 606.28 -763.60 Heading: 0.96 Radians 55.21 Degrees
Raw: 598 657 -834 Scaled: 550.16 604.44 -767.28 Heading: 0.96 Radians 54.99 Degrees
Raw: 600 653 -835 Scaled: 552.00 600.76 -768.20 Heading: 0.96 Radians 54.72 Degrees
Raw: 600 654 -838 Scaled: 552.00 601.68 -770.96 Heading: 0.96 Radians 54.77 Degrees
Raw: 596 647 -854 Scaled: 548.32 595.24 -785.68 Heading: 0.95 Radians 54.65 Degrees
Raw: 594 639 -864 Scaled: 546.48 587.88 -794.88 Heading: 0.95 Radians 54.39 Degrees
Raw: 592 635 -872 Scaled: 544.64 584.20 -802.24 Heading: 0.95 Radians 54.31 Degrees
Raw: 594 624 -876 Scaled: 546.48 574.08 -805.92 Heading: 0.94 Radians 53.71 Degrees
Raw: 592 626 -874 Scaled: 544.64 575.92 -804.08 Heading: 0.94 Radians 53.90 Degrees
Raw: 590 631 -874 Scaled: 542.80 580.52 -804.08 Heading: 0.95 Radians 54.22 Degrees
Raw: 595 628 -874 Scaled: 547.40 577.76 -804.08 Heading: 0.94 Radians 53.85 Degrees
Raw: 592 625 -874 Scaled: 544.64 575.00 -804.08 Heading: 0.94 Radians 53.85 Degrees
Raw: 593 627 -873 Scaled: 545.56 576.84 -803.16 Heading: 0.94 Radians 53.90 Degrees
Raw: 594 628 -873 Scaled: 546.48 577.76 -803.16 Heading: 0.94 Radians 53.89 Degrees
Raw: 591 628 -872 Scaled: 543.72 577.76 -802.24 Heading: 0.94 Radians 54.04 Degrees
Raw: 594 630 -872 Scaled: 546.48 579.60 -802.24 Heading: 0.94 Radians 53.98 Degrees
Raw: 593 630 -877 Scaled: 545.56 579.60 -806.84 Heading: 0.94 Radians 54.03 Degrees
Raw: 575 646 -873 Scaled: 529.00 594.32 -803.16 Heading: 0.97 Radians 55.63 Degrees
Raw: 544 671 -871 Scaled: 500.48 617.32 -801.32 Heading: 1.02 Radians 58.27 Degrees
Raw: 526 687 -872 Scaled: 483.92 632.04 -802.24 Heading: 1.04 Radians 59.86 Degrees
Raw: 484 710 -869 Scaled: 445.28 653.20 -799.48 Heading: 1.10 Radians 63.02 Degrees
Raw: 454 727 -871 Scaled: 417.68 668.84 -801.32 Heading: 1.14 Radians 65.32 Degrees
Raw: 444 733 -870 Scaled: 408.48 674.36 -800.40 Heading: 1.15 Radians 66.09 Degrees
Raw: 417 746 -871 Scaled: 383.64 686.32 -801.32 Heading: 1.19 Radians 68.10 Degrees
Raw: 396 751 -869 Scaled: 364.32 690.92 -799.48 Heading: 1.21 Radians 69.50 Degrees
Raw: 382 759 -868 Scaled: 351.44 698.28 -798.56 Heading: 1.23 Radians 70.58 Degrees
Raw: 350 773 -863 Scaled: 322.00 711.16 -793.96 Heading: 1.27 Radians 72.94 Degrees
Raw: 331 779 -859 Scaled: 304.52 716.68 -790.28 Heading: 1.30 Radians 74.28 Degrees
Raw: 327 781 -862 Scaled: 300.84 718.52 -793.04 Heading: 1.30 Radians 74.58 Degrees
Raw: 309 788 -859 Scaled: 284.28 724.96 -790.28 Heading: 1.32 Radians 75.89 Degrees
Raw: 304 786 -856 Scaled: 279.68 723.12 -787.52 Heading: 1.33 Radians 76.15 Degrees
Raw: 294 791 -855 Scaled: 270.48 727.72 -786.60 Heading: 1.34 Radians 76.91 Degrees
Raw: 291 794 -851 Scaled: 267.72 730.48 -782.92 Heading: 1.35 Radians 77.17 Degrees
Raw: 283 796 -853 Scaled: 260.36 732.32 -784.76 Heading: 1.36 Radians 77.73 Degrees
Raw: 270 796 -852 Scaled: 248.40 732.32 -783.84 Heading: 1.37 Radians 78.56 Degrees
Raw: 261 800 -853 Scaled: 240.12 736.00 -784.76 Heading: 1.38 Radians 79.23 Degrees
Raw: 252 799 -851 Scaled: 231.84 735.08 -782.92 Heading: 1.39 Radians 79.79 Degrees
Raw: 239 803 -850 Scaled: 219.88 738.76 -782.00 Heading: 1.41 Radians 80.72 Degrees
Raw: 221 808 -850 Scaled: 203.32 743.36 -782.00 Heading: 1.43 Radians 82.00 Degrees
Raw: 206 809 -849 Scaled: 189.52 744.28 -781.08 Heading: 1.45 Radians 83.01 Degrees
Raw: 192 809 -846 Scaled: 176.64 744.28 -778.32 Heading: 1.47 Radians 83.95 Degrees
Raw: 173 813 -845 Scaled: 159.16 747.96 -777.40 Heading: 1.49 Radians 85.29 Degrees
Raw: 168 812 -844 Scaled: 154.56 747.04 -776.48 Heading: 1.49 Radians 85.61 Degrees
Raw: 155 815 -843 Scaled: 142.60 749.80 -775.56 Heading: 1.51 Radians 86.53 Degrees
Raw: 146 815 -844 Scaled: 134.32 749.80 -776.48 Heading: 1.52 Radians 87.14 Degrees
Raw: 136 814 -844 Scaled: 125.12 748.88 -776.48 Heading: 1.53 Radians 87.81 Degrees