Akihiro Masuda / Mbed 2 deprecated BLENano_sample02

BLE Nano - HMC5883 communication sample

Dependencies:   BLE_API mbed nRF51822

main.cpp@0:31c9498472f6, 2015-10-11 (annotated)

Committer:
AkihiroMasuda
Date:
Sun Oct 11 03:07:55 2015 +0000
Revision:
0:31c9498472f6
Child:
1:aa93d2588721
initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AkihiroMasuda 0:31c9498472f6 1 #include "mbed.h"
AkihiroMasuda 0:31c9498472f6 2 #include "BLE.h"
AkihiroMasuda 0:31c9498472f6 3
AkihiroMasuda 0:31c9498472f6 4 BLEDevice ble;
AkihiroMasuda 0:31c9498472f6 5
AkihiroMasuda 0:31c9498472f6 6 /** サービス・キャラクタリスティックの定義 **/
AkihiroMasuda 0:31c9498472f6 7 // サービスのUUID
AkihiroMasuda 0:31c9498472f6 8 const uint8_t uuid_service1_a[16] = {0x2c,0x81,0x00,0x01,0x29,0x49,0x42,0xe2,0x83,0x68,0x75,0x64,0x6a,0xb7,0xe1,0x34};
AkihiroMasuda 0:31c9498472f6 9 // キャラクタリスティックのUUID
AkihiroMasuda 0:31c9498472f6 10 const uint8_t uuid_char1_a[16] = {0x2c,0x81,0x00,0x02,0x29,0x49,0x42,0xe2,0x83,0x68,0x75,0x64,0x6a,0xb7,0xe1,0x34};
AkihiroMasuda 0:31c9498472f6 11 const UUID uuid_service1(uuid_service1_a);
AkihiroMasuda 0:31c9498472f6 12 const UUID uuid_char1(uuid_char1_a);
AkihiroMasuda 0:31c9498472f6 13 const int char1_len = 12; //キャラクタリスティック長さ
AkihiroMasuda 0:31c9498472f6 14 uint8_t char1_val[char1_len] = {0};
AkihiroMasuda 0:31c9498472f6 15 GattCharacteristic char1 ( uuid_char1, //UUID
AkihiroMasuda 0:31c9498472f6 16 (uint8_t *)char1_val, //初期値
AkihiroMasuda 0:31c9498472f6 17 char1_len, //初期データ長
AkihiroMasuda 0:31c9498472f6 18 char1_len, //最大データ長
AkihiroMasuda 0:31c9498472f6 19 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ); //プロパティ
AkihiroMasuda 0:31c9498472f6 20 GattCharacteristic *characteristics[] = {&char1, };
AkihiroMasuda 0:31c9498472f6 21 int char_num = sizeof(characteristics) / sizeof(GattCharacteristic *);
AkihiroMasuda 0:31c9498472f6 22 GattService service1( uuid_service1, //UUID
AkihiroMasuda 0:31c9498472f6 23 characteristics, //キャラクタリスティックの集合
AkihiroMasuda 0:31c9498472f6 24 char_num ); //キャラクタリスティック数
AkihiroMasuda 0:31c9498472f6 25
AkihiroMasuda 0:31c9498472f6 26 /** 地磁気センサ HMC5883L I2C通信用変数定義 **/
AkihiroMasuda 0:31c9498472f6 27 I2C i2c(p10, p8); // I2C設定。SDAにポート10、SCLにポート8
AkihiroMasuda 0:31c9498472f6 28 DigitalOut ctrlPin1(p28); //センサ１ ON/OFF制御ポート
AkihiroMasuda 0:31c9498472f6 29 DigitalOut ctrlPin2(p29); //センサ２ ON/OFF制御ポート
AkihiroMasuda 0:31c9498472f6 30
AkihiroMasuda 0:31c9498472f6 31 const int i2cAddr = 0x3C; // HCM5883 I2C Address
AkihiroMasuda 0:31c9498472f6 32
AkihiroMasuda 0:31c9498472f6 33 /* 指定番号のセンサを有効にする */
AkihiroMasuda 0:31c9498472f6 34 void enableSensor(int number){
AkihiroMasuda 0:31c9498472f6 35 if (number==1){
AkihiroMasuda 0:31c9498472f6 36 ctrlPin1 = 1;
AkihiroMasuda 0:31c9498472f6 37 ctrlPin2 = 0;
AkihiroMasuda 0:31c9498472f6 38 }else{
AkihiroMasuda 0:31c9498472f6 39 ctrlPin1 = 0;
AkihiroMasuda 0:31c9498472f6 40 ctrlPin2 = 1;
AkihiroMasuda 0:31c9498472f6 41 }
AkihiroMasuda 0:31c9498472f6 42 }
AkihiroMasuda 0:31c9498472f6 43
AkihiroMasuda 0:31c9498472f6 44 /* センサを初期化する */
AkihiroMasuda 0:31c9498472f6 45 void initSensor(int number){
AkihiroMasuda 0:31c9498472f6 46 // 有効センサの指定
AkihiroMasuda 0:31c9498472f6 47 enableSensor(number);
AkihiroMasuda 0:31c9498472f6 48
AkihiroMasuda 0:31c9498472f6 49 // Continuous-Measurement モードに設定
AkihiroMasuda 0:31c9498472f6 50 char cmd[2];
AkihiroMasuda 0:31c9498472f6 51 cmd[0] = 0x02; // モードレジスタのアドレスを指定
AkihiroMasuda 0:31c9498472f6 52 cmd[1] = 0x00; // モードレジスタに書き込む値を指定。Continuous-Measurement モードは0x00。
AkihiroMasuda 0:31c9498472f6 53 i2c.write(i2cAddr, cmd, 2); // コマンド送信
AkihiroMasuda 0:31c9498472f6 54 }
AkihiroMasuda 0:31c9498472f6 55
AkihiroMasuda 0:31c9498472f6 56 /* センサ値を取得する */
AkihiroMasuda 0:31c9498472f6 57 void readSensor(uint8_t* buf, int number){
AkihiroMasuda 0:31c9498472f6 58 // 有効センサの指定
AkihiroMasuda 0:31c9498472f6 59 enableSensor(number);
AkihiroMasuda 0:31c9498472f6 60
AkihiroMasuda 0:31c9498472f6 61 // センサ値取得
AkihiroMasuda 0:31c9498472f6 62 char cmd[1];
AkihiroMasuda 0:31c9498472f6 63 cmd[0] = 0x3; //センサ値取得用レジスタのアドレスを指定
AkihiroMasuda 0:31c9498472f6 64 i2c.write(i2cAddr, cmd, 1); //コマンド送信
AkihiroMasuda 0:31c9498472f6 65 i2c.read(i2cAddr | 1, (char*)buf, 6); //6バイト分データ(X,Z,Y軸の順に各2バイト)を読み取る
AkihiroMasuda 0:31c9498472f6 66
AkihiroMasuda 0:31c9498472f6 67 }
AkihiroMasuda 0:31c9498472f6 68
AkihiroMasuda 0:31c9498472f6 69 /* BLE接続切断時のコールバック */
AkihiroMasuda 0:31c9498472f6 70 void disconnectionCallback(Gap::Handle_t handle, Gap::DisconnectionReason_t reason){
AkihiroMasuda 0:31c9498472f6 71 ble.startAdvertising();
AkihiroMasuda 0:31c9498472f6 72 }
AkihiroMasuda 0:31c9498472f6 73
AkihiroMasuda 0:31c9498472f6 74 /* BLE接続時のコールバック */
AkihiroMasuda 0:31c9498472f6 75 void onConnectionCallback(const Gap::ConnectionCallbackParams_t *params){
AkihiroMasuda 0:31c9498472f6 76 }
AkihiroMasuda 0:31c9498472f6 77
AkihiroMasuda 0:31c9498472f6 78 /* BLE READ要求受信時のコールバック */
AkihiroMasuda 0:31c9498472f6 79 void onDataReadCallback(const GattReadCallbackParams *eventDataP){
AkihiroMasuda 0:31c9498472f6 80 }
AkihiroMasuda 0:31c9498472f6 81
AkihiroMasuda 0:31c9498472f6 82
AkihiroMasuda 0:31c9498472f6 83 /* タイマーによるコールバック関数 */
AkihiroMasuda 0:31c9498472f6 84 void periodicCallback(void){
AkihiroMasuda 0:31c9498472f6 85 // ２つのセンサ値を取得
AkihiroMasuda 0:31c9498472f6 86 readSensor(&(char1_val[0]), 1);
AkihiroMasuda 0:31c9498472f6 87 readSensor(&(char1_val[6]), 2);
AkihiroMasuda 0:31c9498472f6 88 // キャラクタリスティック値の更新
AkihiroMasuda 0:31c9498472f6 89 GattAttribute::Handle_t handle =
AkihiroMasuda 0:31c9498472f6 90 char1.getValueAttribute().getHandle();
AkihiroMasuda 0:31c9498472f6 91 ble.updateCharacteristicValue(
AkihiroMasuda 0:31c9498472f6 92 handle, //対象のキャラクタリスティックのハンドル
AkihiroMasuda 0:31c9498472f6 93 (uint8_t *)&char1_val,//更新後のデータ
AkihiroMasuda 0:31c9498472f6 94 sizeof(char1_val)); //データ長
AkihiroMasuda 0:31c9498472f6 95 }
AkihiroMasuda 0:31c9498472f6 96
AkihiroMasuda 0:31c9498472f6 97 /* main */
AkihiroMasuda 0:31c9498472f6 98 int main(void){
AkihiroMasuda 0:31c9498472f6 99
AkihiroMasuda 0:31c9498472f6 100 // I2C初期化
AkihiroMasuda 0:31c9498472f6 101 initSensor(1);
AkihiroMasuda 0:31c9498472f6 102 initSensor(2);
AkihiroMasuda 0:31c9498472f6 103
AkihiroMasuda 0:31c9498472f6 104 /* BLE初期化 */
AkihiroMasuda 0:31c9498472f6 105 ble.init();
AkihiroMasuda 0:31c9498472f6 106 ble.onConnection(onConnectionCallback);
AkihiroMasuda 0:31c9498472f6 107 ble.onDisconnection(disconnectionCallback);
AkihiroMasuda 0:31c9498472f6 108 ble.onDataRead(onDataReadCallback);
AkihiroMasuda 0:31c9498472f6 109
AkihiroMasuda 0:31c9498472f6 110 /*　 アドバタイズ設定 */
AkihiroMasuda 0:31c9498472f6 111 //Centralからのアドバタイズメントパケットの受信可否の設定
AkihiroMasuda 0:31c9498472f6 112 ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
AkihiroMasuda 0:31c9498472f6 113 // パケットに含めるデバイス名称設定
AkihiroMasuda 0:31c9498472f6 114 const char device_name[] = "BLE Nano";
AkihiroMasuda 0:31c9498472f6 115 ble.accumulateAdvertisingPayload( GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)device_name, sizeof(device_name));
AkihiroMasuda 0:31c9498472f6 116 // Centralからの接続可を示す設定
AkihiroMasuda 0:31c9498472f6 117 ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
AkihiroMasuda 0:31c9498472f6 118 // アドバタイズ間隔設定。 0.625msの倍数を指定する。ここでは100ms.
AkihiroMasuda 0:31c9498472f6 119 ble.setAdvertisingInterval(160);
AkihiroMasuda 0:31c9498472f6 120 //アドバタイズ開始
AkihiroMasuda 0:31c9498472f6 121 ble.startAdvertising();
AkihiroMasuda 0:31c9498472f6 122
AkihiroMasuda 0:31c9498472f6 123 /* サービス登録 */
AkihiroMasuda 0:31c9498472f6 124 ble.addService(service1);
AkihiroMasuda 0:31c9498472f6 125
AkihiroMasuda 0:31c9498472f6 126 /* タイマー設定 */
AkihiroMasuda 0:31c9498472f6 127 Ticker ticker;
AkihiroMasuda 0:31c9498472f6 128 ticker.attach(
AkihiroMasuda 0:31c9498472f6 129 periodicCallback, //コールバックされる関数
AkihiroMasuda 0:31c9498472f6 130 1 ); //コールバック間隔[秒]
AkihiroMasuda 0:31c9498472f6 131
AkihiroMasuda 0:31c9498472f6 132 /* メインループ*/
AkihiroMasuda 0:31c9498472f6 133 while (true) {
AkihiroMasuda 0:31c9498472f6 134 ble.waitForEvent();
AkihiroMasuda 0:31c9498472f6 135 }
AkihiroMasuda 0:31c9498472f6 136 }