A blue button is always a nice toy ...
Dependencies: BLE_API X_NUCLEO_IDB0XA1 mbed
Fork of BLE_HeartRate_IDB0XA1 by
Diff: main.cpp
- Revision:
- 22:d467526abc4a
- Parent:
- 21:0e7c08f5386f
- Child:
- 23:677689000369
--- a/main.cpp Wed Oct 05 09:16:58 2016 +0000 +++ b/main.cpp Sun Dec 18 05:33:58 2016 +0000 @@ -1,108 +1,111 @@ -/* mbed Microcontroller Library - * Copyright (c) 2006-2015 ARM Limited - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ +#include <mbed.h> +#include "ble/BLE.h" +#include "bricks.h" -#include "mbed.h" -#include "ble/BLE.h" -#include "ble/services/HeartRateService.h" - -DigitalOut led1(LED1, 1); - -const static char DEVICE_NAME[] = "HRM1"; -static const uint16_t uuid16_list[] = {GattService::UUID_HEART_RATE_SERVICE}; +//============================================================================== +// Custom Service Definition +//============================================================================== -static volatile bool triggerSensorPolling = false; + typedef union Buffer + { + uint8_t ubuf[10]; + char cbuf[10]; + uint8_t byte; + uint16_t word16; + uint32_t word32; + int i; + double d; + float f; + } Buffer; + +// Service svc(0xA000); // setup GATT service, UUID 0xA000 +// Characteristic a(svc,0xA001,"r"); // characteristic A with UUID 0xA001 +// Characteristic x(svc,0xA002,"w"); // characteristic X with UUID 0xA002 +// Characteristic y(svc,0xA003,"w"); // characteristic Y with UUID 0xA003 + + static Buffer adata[1]; + ReadOnlyArrayGattCharacteristic<Buffer,1> a(0xA001, adata); -void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params) -{ - (void)params; - BLE::Instance().gap().startAdvertising(); // restart advertising -} + static Buffer xdata[1]; + WriteOnlyArrayGattCharacteristic<Buffer,1> x(0xA002, xdata); -void periodicCallback(void) -{ - led1 = !led1; /* Do blinky on LED1 while we're waiting for BLE events */ - /* Note that the periodicCallback() executes in interrupt context, so it is safer to do - * heavy-weight sensor polling from the main thread. */ - triggerSensorPolling = true; -} + static Buffer ydata[1]; + WriteOnlyArrayGattCharacteristic<Buffer,1> y(0xA002, ydata); + + GattCharacteristic *characteristics[] = {&a,&x,&y}; + GattService service(0xA000, characteristics, sizeof(characteristics) / sizeof(GattCharacteristic *)); + +//============================================================================== +// Some Callbacks +//============================================================================== -void onBleInitError(BLE &ble, ble_error_t error) -{ - (void)ble; - (void)error; - /* Initialization error handling should go here */ -} + void onWritten(Blob &blue) // Handle writes to writeCharacteristic + { + const GattWriteCallbackParams *p = blue.pWritten; + + // Check to see what characteristic was written, by handle + + if(p->handle == x.getValueHandle()) + blink("x x x xxx x ",CONNECTED); + else if(p->handle == y.getValueHandle()) + blink("x x x xxx xxx x ",CONNECTED); -void bleInitComplete(BLE::InitializationCompleteCallbackContext *params) -{ - BLE& ble = params->ble; - ble_error_t error = params->error; + // Update the readChar with the value of writeChar - if (error != BLE_ERROR_NONE) { - onBleInitError(ble, error); - return; - } + //blue.pble->gattServer().write(a.getValueHandle(), p->data, p->len); + blue.gatt().write(a.getValueHandle(), p->data, p->len); + } + - if (ble.getInstanceID() != BLE::DEFAULT_INSTANCE) { - return; - } + void onConnect(Blob &blue) // Connection Callback + { + blink("x x x ",CONNECTED); // indicate advertising + } - ble.gap().onDisconnection(disconnectionCallback); - /* Setup primary service. */ - uint8_t hrmCounter = 60; // init HRM to 60bps - HeartRateService hrService(ble, hrmCounter, HeartRateService::LOCATION_FINGER); + void onDisconnect(Blob &blue) // Disconnection Callback + { + blue.start(); // start advertising on client disconnect + blink(ADVERTISE); // indicate advertising + } + - /* Setup advertising. */ - ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE); - ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list)); - ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::GENERIC_HEART_RATE_SENSOR); - ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME)); - ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); - ble.gap().setAdvertisingInterval(1000); /* 1000ms */ - ble.gap().startAdvertising(); + void onError(Blob &blue) // Error Reporting Callback + { + (void) blue; // Avoid compiler warnings + blink(FAULT); // indicate advertising + } + - // infinite loop - while (true) { - // check for trigger from periodicCallback() - if (triggerSensorPolling && ble.getGapState().connected) { - triggerSensorPolling = false; - - // Do blocking calls or whatever is necessary for sensor polling. - // In our case, we simply update the HRM measurement. - hrmCounter++; - - // 60 <= HRM bps <= 100 - if (hrmCounter == 100) { - hrmCounter = 60; - } + void onSetup(Blob &blue) // Immediately After Initializing BLE + { + blue.device("nRF51-DK"); // setup device name + blue.data("ABCDEF"); // setup advertising data + blue.name("T06.0 Custom GATT"); // setup advertising name - // update bps - hrService.updateHeartRate(hrmCounter); - } else { - ble.waitForEvent(); // low power wait for event - } - } -} + blue.onConnect(onConnect); // setup connection callback + blue.onDisconnect(onDisconnect); // setup disconnection callback + blue.onWritten(onWritten); // setup data written callback + + //blue.service(svc); // setup custom service + blue.service(service); // setup custom service + + blue.advertise("C:ng",100); // start advertising @ 100 msec interval + blink(ADVERTISE); // show that board is advertising + } -int main(void) -{ - Ticker ticker; - ticker.attach(periodicCallback, 1); // blink LED every second +//============================================================================== +// Main Program +//============================================================================== + + int main(void) + { + blink(IDLE); // idle blinking - just started! - BLE::Instance().init(bleInitComplete); -} + Blob blue; // declare a blob (BLe OBject) + blue.init(onSetup,onError); // init BLE base layer, always do first + + while (true) // Infinite loop waiting for BLE events + blue.sleep(); // low power waiting for BLE events + }