BLE ADV Gateway, converts advertisement to proper JSON serial output

Dependencies:   BLE_API mbed mbedtls nRF51822

Revision:
0:3dc6e424dba0
Child:
1:790c863a9ebd
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Jul 14 07:09:47 2015 +0000
@@ -0,0 +1,74 @@
+
+/* 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 "ble/DiscoveredCharacteristic.h"
+#include "ble/DiscoveredService.h"
+#include "TMP_nrf51/TMP_nrf51.h"
+
+
+
+BLE ble;
+
+DigitalOut alivenessLED(LED1, 1);
+TMP_nrf51 tempSensor;
+
+bool triggerLedCharacteristic = false;
+
+uint8_t ADV_INFO[6] = {0xFE, 0xFE, 0x00, 0x00, 0x00, 0x00}; /* Special character || temperature value */
+uint8_t fNewTempValue;
+
+void periodicCallback(void) {
+    alivenessLED = !alivenessLED; /* Do blinky on LED1 while we're waiting for BLE events */
+    fNewTempValue = 1;
+}
+
+
+
+int main(void) {
+    Ticker ticker;
+    /* Refresh temperature value every 2 seconds */
+    ticker.attach(periodicCallback, 2);
+
+    ble.init();
+
+    while (true) {
+        if (fNewTempValue) {
+            float tempVal;
+            tempVal = tempSensor.get();
+            memcpy(&ADV_INFO[2], &tempVal, 4); /* 4 bytes left for tempVal */
+            printf("temp is %f\r\n", tempVal);
+            
+            if((ble.gap().getState()).advertising == 1) {
+                ble.gap().stopAdvertising();
+                ble.gap().clearAdvertisingPayload();
+            }
+            /* Setup advertising. */
+            ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_LIMITED_DISCOVERABLE);
+            ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::UNKNOWN);
+            ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::MANUFACTURER_SPECIFIC_DATA, (uint8_t *)ADV_INFO, sizeof(ADV_INFO));
+            ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_NON_CONNECTABLE_UNDIRECTED);
+            ble.gap().setAdvertisingInterval(500);
+    
+            ble.gap().startAdvertising();
+            
+            fNewTempValue = 0;
+        }
+        ble.waitForEvent();
+    }
+}