jason boffey
DV \E
Dependencies: BLE_API EthernetInterface mbed nRF51822
Fork of
BLE_HeartRate
by 
Bluetooth Low Energy
Diff: main.cpp
- Revision:
- 7:daab8ba5139e
- Parent:
- 5:b0baff4a124f
- Child:
- 8:49d8ee0aac11
--- a/main.cpp Thu Jun 05 09:17:59 2014 +0000
+++ b/main.cpp Tue Jun 10 09:21:43 2014 +0000
@@ -15,9 +15,9 @@
*/
#include "mbed.h"
-#include "nRF51822n.h"
+#include "BLEPeripheral.h"
-nRF51822n nrf; /* BLE radio driver */
+BLEPeripheral ble; /* BLE radio driver */
DigitalOut led1(LED1);
DigitalOut led2(LED2);
@@ -26,105 +26,76 @@
/* Battery Level Service */
uint8_t batt = 72; /* Battery level */
-uint8_t read_batt = 0; /* Variable to hold battery level reads */
+uint8_t read_batt = 0; /* Variable to hold battery level reads */
GattService battService (GattService::UUID_BATTERY_SERVICE);
GattCharacteristic battLevel (GattCharacteristic::UUID_BATTERY_LEVEL_CHAR,
- 1,
- 1,
- GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY |
- GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ);
+ 1, /* initialLen */
+ 1, /* maxLen */
+ GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ);
/* Heart Rate Service */
/* Service: https://developer.bluetooth.org/gatt/services/Pages/ServiceViewer.aspx?u=org.bluetooth.service.heart_rate.xml */
/* HRM Char: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.heart_rate_measurement.xml */
/* Location: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.body_sensor_location.xml */
GattService hrmService (GattService::UUID_HEART_RATE_SERVICE);
-GattCharacteristic hrmRate (
- GattCharacteristic::UUID_HEART_RATE_MEASUREMENT_CHAR,
- 2,
- 3,
- GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY);
-GattCharacteristic hrmLocation (
- GattCharacteristic::UUID_BODY_SENSOR_LOCATION_CHAR,
- 1,
- 1,
- GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ);
+GattCharacteristic hrmRate (GattCharacteristic::UUID_HEART_RATE_MEASUREMENT_CHAR,
+ 2, /* initialLen */
+ 3, /* maxLen */
+ GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY);
+GattCharacteristic hrmLocation (GattCharacteristic::UUID_BODY_SENSOR_LOCATION_CHAR,
+ 1, /* initialLen */
+ 1, /* maxLen */
+ GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ);
/* Device Information service */
uint8_t deviceName[4] = {'m', 'b', 'e', 'd'};
-GattService deviceInformationService (
- GattService::UUID_DEVICE_INFORMATION_SERVICE);
+GattService deviceInformationService (GattService::UUID_DEVICE_INFORMATION_SERVICE);
GattCharacteristic deviceManufacturer (
GattCharacteristic::UUID_MANUFACTURER_NAME_STRING_CHAR,
- sizeof(deviceName),
- sizeof(deviceName),
+ sizeof(deviceName), /* initialLen */
+ sizeof(deviceName), /* maxLen */
GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ);
-/* Advertising data and parameters */
-GapAdvertisingData advData;
-GapAdvertisingData scanResponse;
-GapAdvertisingParams advParams (GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
-uint16_t uuid16_list[] = {GattService::UUID_BATTERY_SERVICE,
- GattService::UUID_DEVICE_INFORMATION_SERVICE,
- GattService::UUID_HEART_RATE_SERVICE};
+static const uint16_t uuid16_list[] = {
+ GattService::UUID_BATTERY_SERVICE,
+ GattService::UUID_DEVICE_INFORMATION_SERVICE,
+ GattService::UUID_HEART_RATE_SERVICE
+};
void tickerCallback(void);
-/**************************************************************************/
-/*!
- @brief This custom class can be used to override any GapEvents
- that you are interested in handling on an application level.
-*/
-/**************************************************************************/
-class GapEventHandler : public GapEvents
+void timeoutCallback(void)
{
- virtual void onTimeout(void)
- {
- pc.printf("Advertising Timeout!\n\r");
- // Restart the advertising process with a much slower interval,
- // only start advertising again after a button press, etc.
- }
+ pc.printf("Advertising Timeout!\n\r");
+ // Restart the advertising process with a much slower interval,
+ // only start advertising again after a button press, etc.
+}
- virtual void onConnected(void)
- {
- pc.printf("Connected!\n\r");
- }
-
- virtual void onDisconnected(void)
- {
- pc.printf("Disconnected!\n\r");
- pc.printf("Restarting the advertising process\n\r");
- nrf.getGap().startAdvertising(advParams);
- }
-};
+void connectionCallback(void)
+{
+ pc.printf("Connected!\n\r");
+}
-/**************************************************************************/
-/*!
- @brief This custom class can be used to override any GattServerEvents
- that you are interested in handling on an application level.
-*/
-/**************************************************************************/
-class GattServerEventHandler : public GattServerEvents
+void disconnectionCallback(void)
{
- //virtual void onDataSent(uint16_t charHandle) {}
- //virtual void onDataWritten(uint16_t charHandle) {}
+ pc.printf("Disconnected!\n\r");
+ pc.printf("Restarting the advertising process\n\r");
+ ble.startAdvertising();
+}
- virtual void onUpdatesEnabled(uint16_t charHandle)
- {
- if (charHandle == hrmRate.getHandle()) {
- pc.printf("Heart rate notify enabled\n\r");
- }
+void updatesEnabledCallback(uint16_t charHandle)
+{
+ if (charHandle == hrmRate.getHandle()) {
+ pc.printf("Heart rate notify enabled\n\r");
}
+}
- virtual void onUpdatesDisabled(uint16_t charHandle)
- {
- if (charHandle == hrmRate.getHandle()) {
- pc.printf("Heart rate notify disabled\n\r");
- }
+void updatesDisabledCallback(uint16_t charHandle)
+{
+ if (charHandle == hrmRate.getHandle()) {
+ pc.printf("Heart rate notify disabled\n\r");
}
-
- //virtual void onConfirmationReceived(uint16_t charHandle) {}
-};
+}
/**************************************************************************/
/*!
@@ -139,61 +110,56 @@
flipper.attach(&tickerCallback, 1.0);
/* Setup the local GAP/GATT event handlers */
- nrf.getGap().setEventHandler(new GapEventHandler());
- nrf.getGattServer().setEventHandler(new GattServerEventHandler());
+ ble.onTimeout(timeoutCallback);
+ ble.onConnection(connectionCallback);
+ ble.onDisconnection(disconnectionCallback);
+ ble.onUpdatesEnabled(updatesEnabledCallback);
+ ble.onUpdatesDisabled(updatesDisabledCallback);
/* Initialise the nRF51822 */
pc.printf("Initialising the nRF51822\n\r");
- nrf.init();
-
- /* Make sure we get a clean start */
- nrf.reset();
+ ble.init();
/* Add BLE-Only flag and complete service list to the advertising data */
- advData.addFlags(GapAdvertisingData::BREDR_NOT_SUPPORTED);
- advData.addData(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS,
- (uint8_t *)uuid16_list, sizeof(uuid16_list));
- advData.addAppearance(GapAdvertisingData::HEART_RATE_SENSOR_HEART_RATE_BELT);
- nrf.getGap().setAdvertisingData(advData, scanResponse);
+ ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED);
+ ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list));
+ ble.accumulateAdvertisingPayload(GapAdvertisingData::HEART_RATE_SENSOR_HEART_RATE_BELT);
/* Add the Battery Level service */
battService.addCharacteristic(battLevel);
- nrf.getGattServer().addService(battService);
+ ble.addService(battService);
/* Add the Device Information service */
deviceInformationService.addCharacteristic(deviceManufacturer);
- nrf.getGattServer().addService(deviceInformationService);
+ ble.addService(deviceInformationService);
/* Add the Heart Rate service */
hrmService.addCharacteristic(hrmRate);
hrmService.addCharacteristic(hrmLocation);
- nrf.getGattServer().addService(hrmService);
+ ble.addService(hrmService);
- /* Start advertising (make sure you've added all your data first) */
- nrf.getGap().startAdvertising(advParams);
+ ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
+ ble.setAdvertisingInterval(160); /* 100ms; in multiples of 0.625ms. */
+ ble.startAdvertising();
/* Wait until we are connected to a central device before updating
* anything */
pc.printf("Waiting for a connection ...");
- while (!nrf.getGap().state.connected) {
+ while (!ble.getGapState().connected) {
+ ble.waitForEvent();
}
pc.printf("Connected!\n\r");
- /* Now that we're live, update the battery level characteristic, and */
- /* change the device manufacturer characteristic to 'mbed' */
- nrf.getGattServer().updateValue(battLevel.getHandle(), (uint8_t *)&batt,
- sizeof(batt));
- nrf.getGattServer().updateValue(deviceManufacturer.getHandle(),
- deviceName,
- sizeof(deviceName));
+ /* Now that we're live, update the battery level characteristic, and
+ * change the device manufacturer characteristic to 'mbed' */
+ ble.updateCharacteristicValue(battLevel.getHandle(), (uint8_t *)&batt, sizeof(batt));
+ ble.updateCharacteristicValue(deviceManufacturer.getHandle(), deviceName, sizeof(deviceName));
/* Set the heart rate monitor location (one time only) */
/* See --> https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.body_sensor_location.xml */
- uint8_t location = 0x03; /* Finger */
+ uint8_t location = 0x03; /* Finger */
uint8_t hrmCounter = 100;
- nrf.getGattServer().updateValue(hrmLocation.getHandle(),
- (uint8_t *)&location,
- sizeof(location));
+ ble.updateCharacteristicValue(hrmLocation.getHandle(), (uint8_t *)&location, sizeof(location));
/* Do blinky on LED1 while we're waiting for BLE events */
for (;; ) {
@@ -205,19 +171,17 @@
if (batt > 100) {
batt = 72;
}
- nrf.getGattServer().updateValue(battLevel.getHandle(),
- (uint8_t *)&batt,
- sizeof(batt));
+ ble.updateCharacteristicValue(battLevel.getHandle(), (uint8_t *)&batt, sizeof(batt));
- /* Update the HRM measurement */
- /* First byte = 8-bit values, no extra info, Second byte = uint8_t HRM value */
- /* See --> https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.heart_rate_measurement.xml */
+ /* Update the HRM measurement */
+ /* First byte = 8-bit values, no extra info, Second byte = uint8_t HRM value */
+ /* See --> https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.heart_rate_measurement.xml */
hrmCounter++;
if (hrmCounter == 175) {
hrmCounter = 100;
}
uint8_t bpm[2] = {0x00, hrmCounter};
- nrf.getGattServer().updateValue(hrmRate.getHandle(), bpm, sizeof(bpm));
+ ble.updateCharacteristicValue(hrmRate.getHandle(), bpm, sizeof(bpm));
}
}