Revision 0:ed5c53845de7, committed 2015-02-18

Comitter:

rgrover1

Date:

Wed Feb 18 10:22:43 2015 +0000

Child:

1:a84c3717aa5e

Commit message:

a simple demo driving an LED through a BLE service

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/BLE_API.lib	Wed Feb 18 10:22:43 2015 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/teams/Bluetooth-Low-Energy/code/BLE_API/#1956023d42fb

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/LEDService.h	Wed Feb 18 10:22:43 2015 +0000
@@ -0,0 +1,42 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2013 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.
+ */
+
+#ifndef __BLE_LED_SERVICE_H__
+#define __BLE_LED_SERVICE_H__
+
+class LEDService {
+public:
+    const static uint16_t LED_SERVICE_UUID              = 0xA000;
+    const static uint16_t LED_STATE_CHARACTERISTIC_UUID = 0xA001;
+
+    LEDService(BLEDevice &_ble, bool initialValueForLEDCharacteristic) :
+        ble(_ble), ledState(LED_STATE_CHARACTERISTIC_UUID, &initialValueForLEDCharacteristic)
+    {
+        GattCharacteristic *charTable[] = {&ledState};
+        GattService         ledService(LED_SERVICE_UUID, charTable, sizeof(charTable) / sizeof(GattCharacteristic *));
+        ble.addService(ledService);
+    }
+
+    GattAttribute::Handle_t getValueHandle() const {
+        return ledState.getValueHandle();
+    }
+
+private:
+    BLEDevice                         &ble;
+    ReadWriteGattCharacteristic<bool>  ledState;
+};
+
+#endif /* #ifndef __BLE_LED_SERVICE_H__ */

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Feb 18 10:22:43 2015 +0000
@@ -0,0 +1,79 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2013 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 "BLEDevice.h"
+#include "LEDService.h"
+
+BLEDevice  ble;
+DigitalOut alivenessLED(LED1);
+DigitalOut actuatedLED(LED2);
+
+const static char     DEVICE_NAME[] = "LED";
+static const uint16_t uuid16_list[] = {LEDService::LED_SERVICE_UUID};
+
+LEDService *ledServicePtr;
+
+void disconnectionCallback(Gap::Handle_t handle, Gap::DisconnectionReason_t reason)
+{
+    ble.startAdvertising();
+}
+
+void periodicCallback(void)
+{
+    alivenessLED = !alivenessLED; /* Do blinky on LED1 to indicate system aliveness. */
+}
+
+/**
+ * This callback allows the LEDService to receive updates to the ledState Characteristic.
+ *
+ * @param[in] params
+ *     Information about the characterisitc being updated.
+ */
+void onDataWrittenCallback(const GattCharacteristicWriteCBParams *params) {
+    if ((params->charHandle == ledServicePtr->getValueHandle()) && (params->len == 1)) {
+        actuatedLED = *(params->data);
+    }
+}
+
+int main(void)
+{
+    alivenessLED = 0;
+    actuatedLED  = 0;
+
+    Ticker ticker;
+    ticker.attach(periodicCallback, 1);
+
+    ble.init();
+    ble.onDisconnection(disconnectionCallback);
+    ble.onDataWritten(onDataWrittenCallback);
+
+    bool initialValueForLEDCharacteristic = false;
+    LEDService ledService(ble, initialValueForLEDCharacteristic);
+    ledServicePtr = &ledService;
+
+    /* setup advertising */
+    ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
+    ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list));
+    ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME));
+    ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
+    ble.setAdvertisingInterval(Gap::MSEC_TO_ADVERTISEMENT_DURATION_UNITS(1000)); /* 1000ms. */
+    ble.startAdvertising();
+
+    while (true) {
+        ble.waitForEvent();
+    }
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Wed Feb 18 10:22:43 2015 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/9ad691361fac
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nRF51822.lib	Wed Feb 18 10:22:43 2015 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/teams/Nordic-Semiconductor/code/nRF51822/#0e7a9efee6d7