main.cpp

00001 #include "mbed.h"
00002 #include "BLE.h"
00003 #include "XNucleoIKS01A2.h"
00004 
00005 #if 1 //1:シリアルモニタ表示, 0:非表示
00006 Serial pc(USBTX, USBRX);
00007 #define DEBUG(...) { pc.printf(__VA_ARGS__); }
00008 #else
00009 #define DEBUG(...)
00010 #endif
00011 
00012 /* Instantiate the expansion board */
00013 static XNucleoIKS01A2 *mems_expansion_board = XNucleoIKS01A2::instance(D14, D15, D4, D5);
00014 static HTS221Sensor *hum_temp = mems_expansion_board->ht_sensor;
00015 
00016 float value1, value2;
00017 
00018 DigitalOut led(LED1);
00019 Ticker ticker;
00020 BLE ble;
00021 const static char DEVICE_NAME[] = "CD1";
00022 static Gap::ConnectionParams_t connectionParams;
00023 uint16_t uuid_list[] = {GattService::UUID_DEVICE_INFORMATION_SERVICE};
00024 uint8_t msg = 0;
00025 uint16_t msg16 = 0;
00026 uint8_t msg_low = 0;
00027 uint8_t msg_high = 0;
00028 uint8_t error_flag = 0;
00029 
00030 //ここからサービスとキャラクタリスティックの用意
00031 static const uint8_t UUID_CHAR_DATA[] = {0xFF,0xCF,0xFC,0xCC,0xFF,0xCF,0xFC,0xCC,0xFF,0xCF,0xFC,0xCC,0xFF,0xCF,0xFC,0xCC};//なんでもいい
00032 GattCharacteristic customCharastic(UUID_CHAR_DATA, (uint8_t *)&msg16, sizeof(msg16), sizeof(msg16), GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY);
00033 GattCharacteristic *customChars[] = {&customCharastic};
00034 GattService customService(GattService::UUID_DEVICE_INFORMATION_SERVICE, customChars, sizeof(customChars) / sizeof(GattCharacteristic *));
00035 
00036 //BLE接続したら呼ばれるやつ
00037 void connectionCallback(const Gap::ConnectionCallbackParams_t *params) {
00038     DEBUG("Connected!\n\r");
00039     ble.getPreferredConnectionParams(&connectionParams);
00040     connectionParams.minConnectionInterval = 7.5;
00041     connectionParams.maxConnectionInterval = 10;
00042     connectionParams.slaveLatency = 0;
00043     if (ble.gap().updateConnectionParams(params->handle, &connectionParams) != BLE_ERROR_NONE) {
00044         DEBUG("Failed to update\n\r");
00045     }
00046 }
00047 
00048 //BLE切断したら呼ばれるやつ
00049 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params) {
00050     DEBUG("Disconnected!\n\r");
00051     ticker.detach();
00052     ble.gap().startAdvertising();
00053 }
00054 
00055 //周期的に呼ばれるやつ
00056 void tickerCallback() {
00057     DEBUG("update\n\r");
00058     hum_temp->get_temperature(&value1);
00059     msg_high = (uint8_t)value1;
00060     msg_low = (uint8_t) ((value1 - msg_high) *255);
00061     msg16 = msg_high << 8 | msg_low ;
00062     DEBUG("msg = 0x%x\n\r", msg16);
00063     error_flag = ble.updateCharacteristicValue(customCharastic.getValueAttribute().getHandle(), (uint8_t *)&msg16 , sizeof(msg16));
00064     DEBUG("error = %d\n\r", error_flag);
00065 }
00066 
00067 //通知を開始するやつ
00068 void updatesEnabledCallback(Gap::Handle_t handle) {
00069     led = 1;
00070     ticker.attach(&tickerCallback, 10);
00071     DEBUG("Notification is enabled\n\r");
00072 }
00073 
00074 //通知を停止するやつ
00075 void updatesDisabledCallback(Gap::Handle_t handle) {
00076     led = 0;
00077     ticker.detach();
00078     DEBUG("Notification is disabled\n\r");
00079 }
00080 
00081 void printMacAddress()
00082 {
00083     /* Print out device MAC address to the console*/
00084     Gap::AddressType_t addr_type;
00085     Gap::Address_t address;
00086     BLE::Instance().gap().getAddress(&addr_type, address);
00087     printf("DEVICE MAC ADDRESS: ");
00088     for (int i = 5; i >= 1; i--){
00089         printf("%02x:", address[i]);
00090     }
00091     printf("%02x\r\n", address[0]);
00092 }
00093 
00094 
00095 int main(void) {
00096     uint8_t id;
00097     
00098     DEBUG("start\n\r");
00099     
00100     hum_temp->enable();
00101     hum_temp->read_id(&id);
00102     printf("HTS221  humidity & temperature    = 0x%X\r\n", id);
00103     DEBUG("Initialize\n\r");
00104     ble.init();
00105 
00106     DEBUG("Setup the event handlers\n\r");
00107     ble.gap().onConnection(connectionCallback);
00108     ble.gap().onDisconnection(disconnectionCallback);
00109     ble.onUpdatesEnabled(updatesEnabledCallback);
00110     ble.onUpdatesDisabled(updatesDisabledCallback);
00111 
00112     DEBUG("Advertising payload\n\r");
00113     ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
00114     ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid_list, sizeof(uuid_list));
00115     ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof((const uint8_t *)DEVICE_NAME));
00116     ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
00117     ble.gap().setAdvertisingInterval(160); //100ms;
00118     ble.gap().startAdvertising();
00119 
00120     DEBUG("Add service\n\r");
00121     ble.gattServer().addService(customService);
00122 
00123     printMacAddress();
00124 
00125     while (true) {
00126         ble.waitForEvent();
00127     }
00128 }