Working Code
Dependencies: BLE_API mbed nRF51822
Fork of BLE_Central_Light_Demo by
main.cpp
- Committer:
- hmiot
- Date:
- 2017-01-20
- Revision:
- 7:66586d2d7cb5
- Parent:
- 6:71e7a446ae6a
- Child:
- 8:285ebd0e83fb
File content as of revision 7:66586d2d7cb5:
/************************************************************************ * * * * ************************************************************************/ #include "hm_config.h" static const uint16_t UNIT_1_25_MS = 1250; static const uint16_t UNIT_10_MS = 10000; #define MSEC_TO_UNITS(TIME, RESOLUTION) (((TIME) * 1000) / (RESOLUTION)) #define MIN_CONNECTION_INTERVAL MSEC_TO_UNITS(7.5, UNIT_1_25_MS) #define MAX_CONNECTION_INTERVAL MSEC_TO_UNITS(30, UNIT_1_25_MS) #define SLAVE_LATENCY 4 #define SUPERVISION_TIMEOUT MSEC_TO_UNITS(6000, UNIT_10_MS) typedef unsigned char byte_char; DiscoveredCharacteristic lightCharacteristic; static const Gap::ConnectionParams_t m_conn_params ={ (uint16_t)MIN_CONNECTION_INTERVAL, (uint16_t)MAX_CONNECTION_INTERVAL, (uint16_t)SLAVE_LATENCY, (uint16_t)SUPERVISION_TIMEOUT }; GapScanningParams m_scan_params; Serial pc(USBTX, USBRX); static ble_error_t error_status; void advertisementCallback(const Gap::AdvertisementCallbackParams_t *params) { uint8_t con_status =0; // uint8_t i; Gap::GapState_t con_state; //0x51 for Magic light //0x5A if (params->peerAddr[0] != 0x51) { // 0x2F for red bear1.5 /* !ALERT! Alter this filter to suit your device. */ return; } pc.printf("adv peerAddr[%02x %02x %02x %02x %02x %02x] rssi %d, isScanResponse %u, AdvertisementType %u\r\n", params->peerAddr[5], params->peerAddr[4], params->peerAddr[3], params->peerAddr[2], params->peerAddr[1], params->peerAddr[0], params->rssi, params->isScanResponse, params->type); pc.printf("Data Length : %d\r\n",params->advertisingDataLen); con_status = BLE::Instance().gap().connect(params->peerAddr, Gap::ADDR_TYPE_PUBLIC, NULL, NULL); pc.printf("Connection Status : %d\r\n",con_status); con_state = BLE::Instance().gap().getState(); pc.printf("Connection state : %d\r\n",con_state); // } BLE::Instance().gap().stopScan(); } void serviceDiscoveryCallback(const DiscoveredService *service) { pc.printf("Service Discovery Callback\r\n"); if (service->getUUID().shortOrLong() == UUID::UUID_TYPE_SHORT) { pc.printf("S UUID-%x attrs[%u %u]\r\n", service->getUUID().getShortUUID(), service->getStartHandle(), service->getEndHandle()); } else { pc.printf("S UUID-"); const uint8_t *longUUIDBytes = service->getUUID().getBaseUUID(); for (unsigned i = 0; i < UUID::LENGTH_OF_LONG_UUID; i++) { printf("%02x", longUUIDBytes[i]); } pc.printf(" attrs[%u %u]\r\n", service->getStartHandle(), service->getEndHandle()); } } void characteristicDiscoveryCallback(const DiscoveredCharacteristic *characteristicP) { pc.printf(" C UUID-%x valueAttr[%u] props[%x]\r\n", characteristicP->getUUID().getShortUUID(), characteristicP->getValueHandle(), (uint8_t)characteristicP->getProperties().broadcast()); uint8_t write_data []={0x56,0xff,0x00,0x00,0x00,0xf0,0xaa}; if (characteristicP->getUUID().getShortUUID() == 0xffe9) { /* !ALERT! Alter this filter to suit your device. */ lightCharacteristic = *characteristicP; pc.printf("Matched char UUID\r\n"); printf("Value Handle = %d\r\n",characteristicP->getDeclHandle()); printf("Value Handle = %d and data size : %d\r\n",characteristicP->getValueHandle(),sizeof(write_data)); lightCharacteristic.writeWoResponse(sizeof(write_data), write_data); //error_status = characteristicP->write(sizeof(write_data), write_data); printf("Write Status : %d\r\n",error_status); } } void discoveryTerminationCallback(Gap::Handle_t connectionHandle) { pc.printf("terminated SD for handle %u\r\n", connectionHandle); } void connectionCallback(const Gap::ConnectionCallbackParams_t *params) { pc.printf("Connection Callback\n\r"); if (params->role == Gap::CENTRAL) { pc.printf("Service and characterstics discovery callback\r\n"); BLE::Instance().gattClient().onServiceDiscoveryTermination(discoveryTerminationCallback); BLE::Instance().gattClient().launchServiceDiscovery(params->handle, serviceDiscoveryCallback, characteristicDiscoveryCallback, 0xffe5, 0xffe9); } } void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params) { pc.printf("disconnected\r\n"); } /** * Callback triggered when the ble initialization process has finished */ void bleInitComplete(BLE::InitializationCompleteCallbackContext *params) { BLE& ble = params->ble; pc.printf("Ble Init\n\r"); /* Ensure that it is the default instance of BLE */ if(ble.getInstanceID() != BLE::DEFAULT_INSTANCE) { return; } ble.gap().onConnection(connectionCallback); ble.gap().onDisconnection(disconnectionCallback); ble.gap().setScanParams(1000, 800); ble.gap().startScan(advertisementCallback); } int main(void) { pc.baud(9600); wait(8.0); pc.printf("Start\n\r"); BLE &ble = BLE::Instance(); ble.init(bleInitComplete); while (true) { ble.waitForEvent(); } }