Delta
Demo Glucose Service
Dependencies: BLE_API mbed nRF51822
Fork of
BLE_HeartRate
by 
Bluetooth Low Energy
BLE_Glucose_demo implements the Glucose Service which enables a collector device to connect and interact with.
There is a brief sample code edited with Android Studio for demo this BLE_Glucose_demo example, and it is public on github, everyone can clone it by this URL: https://github.com/Marcomissyou/BluetoothLeGlucose.git. It is convenient for you to development your BLE idea.
There is also provided apk file so you can download and install it directly then demo this code, but make sure your Android phone supports Bluetooth 4.0. /media/uploads/Marcomissyou/bleglucoseservice.apk
Revision 55:3a7d497a3e03, committed 2015-02-09
- Comitter:
- mbedAustin
- Date:
- Mon Feb 09 04:50:03 2015 +0000
- Parent:
- 54:54a3de277e6b
- Child:
- 56:83623419d5e4
- Commit message:
- removed unncessary Battery Service from HearRate demo code
Changed in this revision
--- a/BLE_API.lib Tue Dec 09 08:54:37 2014 +0000 +++ b/BLE_API.lib Mon Feb 09 04:50:03 2015 +0000 @@ -1,1 +1,1 @@ -http://mbed.org/teams/Bluetooth-Low-Energy/code/BLE_API/#0e9201b67e2f +http://mbed.org/teams/Bluetooth-Low-Energy/code/BLE_API/#1407d2f1ce3c
--- a/main.cpp Tue Dec 09 08:54:37 2014 +0000
+++ b/main.cpp Mon Feb 09 04:50:03 2015 +0000
@@ -17,7 +17,6 @@
#include "mbed.h"
#include "BLEDevice.h"
#include "HeartRateService.h"
-#include "BatteryService.h"
#include "DeviceInformationService.h"
/* Enable the following if you need to throttle the connection interval. This has
@@ -29,9 +28,8 @@
BLEDevice ble;
DigitalOut led1(LED1);
-const static char DEVICE_NAME[] = "Nordic_HRM";
+const static char DEVICE_NAME[] = "HRM1";
static const uint16_t uuid16_list[] = {GattService::UUID_HEART_RATE_SERVICE,
- GattService::UUID_BATTERY_SERVICE,
GattService::UUID_DEVICE_INFORMATION_SERVICE};
static volatile bool triggerSensorPolling = false;
@@ -40,28 +38,6 @@
ble.startAdvertising(); // restart advertising
}
-void onConnectionCallback(Gap::Handle_t handle, Gap::addr_type_t peerAddrType, const Gap::address_t peerAddr, const Gap::ConnectionParams_t *params)
-{
- #if UPDATE_PARAMS_FOR_LONGER_CONNECTION_INTERVAL
- /* Updating connection parameters can be attempted only after a connection has been
- * established. Please note that the ble-Central is still the final arbiter for
- * the effective parameters; the peripheral can only hope that the request is
- * honored. Please also be mindful of the constraints that might be enforced by
- * the BLE stack on the underlying controller.*/
- #define MIN_CONN_INTERVAL 250 /**< Minimum connection interval (250 ms) */
- #define MAX_CONN_INTERVAL 350 /**< Maximum connection interval (350 ms). */
- #define CONN_SUP_TIMEOUT 6000 /**< Connection supervisory timeout (6 seconds). */
- #define SLAVE_LATENCY 4
-
- Gap::ConnectionParams_t gap_conn_params;
- gap_conn_params.minConnectionInterval = Gap::MSEC_TO_GAP_DURATION_UNITS(MIN_CONN_INTERVAL);
- gap_conn_params.maxConnectionInterval = Gap::MSEC_TO_GAP_DURATION_UNITS(MAX_CONN_INTERVAL);
- gap_conn_params.connectionSupervisionTimeout = Gap::MSEC_TO_GAP_DURATION_UNITS(CONN_SUP_TIMEOUT);
- gap_conn_params.slaveLatency = SLAVE_LATENCY;
- ble.updateConnectionParams(handle, &gap_conn_params);
- #endif /* #if UPDATE_PARAMS_FOR_LONGER_CONNECTION_INTERVAL */
-}
-
void periodicCallback(void)
{
led1 = !led1; /* Do blinky on LED1 while we're waiting for BLE events */
@@ -75,20 +51,16 @@
{
led1 = 1;
Ticker ticker;
- ticker.attach(periodicCallback, 1);
+ ticker.attach(periodicCallback, 1); // blink LED every second
ble.init();
ble.onDisconnection(disconnectionCallback);
-#if UPDATE_PARAMS_FOR_LONGER_CONNECTION_INTERVAL
- ble.onConnection(onConnectionCallback);
-#endif /* #if UPDATE_PARAMS_FOR_LONGER_CONNECTION_INTERVAL */
/* Setup primary service. */
- uint8_t hrmCounter = 100;
+ uint8_t hrmCounter = 100; // init HRM to 100bps
HeartRateService hrService(ble, hrmCounter, HeartRateService::LOCATION_FINGER);
- /* Setup auxiliary services. */
- BatteryService battery(ble);
+ /* Setup auxiliary service. */
DeviceInformationService deviceInfo(ble, "ARM", "Model1", "SN1", "hw-rev1", "fw-rev1", "soft-rev1");
/* Setup advertising. */
@@ -100,20 +72,25 @@
ble.setAdvertisingInterval(Gap::MSEC_TO_ADVERTISEMENT_DURATION_UNITS(1000));
ble.startAdvertising();
- while (true) {
+ // infinite loop
+ while (1) {
+ // 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 dummy HRM measurement. */
+ // Do blocking calls or whatever is necessary for sensor polling.
+ // In our case, we simply update the HRM measurement.
hrmCounter++;
+
+ // 100 <= HRM bps <=175
if (hrmCounter == 175) {
hrmCounter = 100;
}
-
+
+ // update bps
hrService.updateHeartRate(hrmCounter);
} else {
- ble.waitForEvent();
+ ble.waitForEvent(); // low power wait for event
}
}
}
--- a/mbed.bld Tue Dec 09 08:54:37 2014 +0000 +++ b/mbed.bld Mon Feb 09 04:50:03 2015 +0000 @@ -1,1 +1,1 @@ -http://mbed.org/users/mbed_official/code/mbed/builds/4fc01daae5a5 \ No newline at end of file +http://mbed.org/users/mbed_official/code/mbed/builds/e188a91d3eaa \ No newline at end of file
--- a/nRF51822.lib Tue Dec 09 08:54:37 2014 +0000 +++ b/nRF51822.lib Mon Feb 09 04:50:03 2015 +0000 @@ -1,1 +1,1 @@ -http://mbed.org/teams/Nordic-Semiconductor/code/nRF51822/#cdcc094ab166 +http://mbed.org/teams/Nordic-Semiconductor/code/nRF51822/#0e7a9efee6d7