Bluetooth Low Energy
https://github.com/google/physical-web
Dependencies: BLE_API mbed nRF51822
PhysicalWeb is the general concept of connecting physical devices to the web via BLE.
The core of the PhysicalWeb concept is based around the URI Beacon service. A URI Beacon is an unencrypted broadcast of a Universal Resource Indicator (URI), most commonly in the form of web links. This example is a more advanced form of the UriBeacon Example.
The PhysicalWeb concept is currently being championed by Google so the majority of the documentation is based around the [ https://github.com/google/physical-web | Google PhysicalWeb Github] page.
Here's an introduction to the concept.
There's an Android App to go with it.
As mentioned above, the UriBeacon Service is key to the implementation of PhysicalWeb. The UriBeacon documentation is based out of the Google UriBeacon Github page
Diff: main.cpp
- Revision:
- 0:790a27ffc99b
- Child:
- 1:65e87169548d
diff -r 000000000000 -r 790a27ffc99b main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Wed Oct 08 16:49:32 2014 +0000
@@ -0,0 +1,50 @@
+/* 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"
+
+BLEDevice ble;
+
+static const uint8_t BEACON_UUID[] = {0xD8, 0xFE};
+uint8_t urldata[] =
+{
+ BEACON_UUID[0], BEACON_UUID[1],
+ 0x00, // flags
+ 0x20, // power
+ 0x00, // http://www.
+ 'm', // 'm'
+ 'b', // 'b'
+ 'e', // 'e'
+ 'd', // 'd'
+ 0x08, // .".org"
+};
+
+int main(void)
+{
+ ble.init();
+
+ ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, BEACON_UUID, sizeof(BEACON_UUID));
+ ble.accumulateAdvertisingPayload(GapAdvertisingData::SERVICE_DATA, urldata, sizeof(urldata));
+
+ ble.setAdvertisingType(GapAdvertisingParams::ADV_NON_CONNECTABLE_UNDIRECTED);
+ ble.setAdvertisingInterval(1600); /* 1s; in multiples of 0.625ms. */
+ ble.startAdvertising();
+
+ while (true) {
+ ble.waitForEvent();
+ }
+}