Diff: main.cpp

Revision:

0:adcc621e5713

Child:

2:f266f102ca80

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sat Mar 14 19:25:40 2015 +0000
@@ -0,0 +1,109 @@
+#include "mbed.h"
+#include "BLEDevice.h"
+#include "nRF8001.h"
+
+
+BLEDevice  ble;
+DigitalOut led1(LED1);
+InterruptIn button1(D1);
+InterruptIn button2(D2);
+
+const uint8_t LED1_UUID[LENGTH_OF_LONG_UUID] = {
+    0xfb, 0x71, 0xbc, 0xc0, 0x5a, 0x0c, 0x11, 0xe4,
+    0x91, 0xae, 0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b
+};
+const uint8_t BUTTON_UUID[LENGTH_OF_LONG_UUID] = {
+    0x7a, 0x77, 0xbe, 0x20, 0x5a, 0x0d, 0x11, 0xe4,
+    0xa9, 0x5e, 0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b
+};
+const uint8_t TEST_SERVICE_UUID[LENGTH_OF_LONG_UUID] = {
+    0xb0, 0xbb, 0x58, 0x20, 0x5a, 0x0d, 0x11, 0xe4,
+    0x93, 0xee, 0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b
+};
+
+const static char DEVICE_NAME[] = "Sita";
+static volatile bool is_button_pressed = false;
+static volatile uint16_t led1_handler;
+
+uint8_t led_state, button_state;
+
+void disconnectionCallback(Gap::Handle_t handle, Gap::DisconnectionReason_t reason)
+{
+    ble.startAdvertising(); // restart advertising
+}
+
+void changeLED(const GattCharacteristicWriteCBParams *eventDataP) {
+    // eventDataP->charHandle is just uint16_t
+    // it's used to dispatch the callbacks
+    if (eventDataP->charHandle == led1_handler) {
+        led1 = eventDataP->data[0] % 2;
+    }
+}
+
+void button1Pressed() {
+    button_state = 1;
+    is_button_pressed = true;
+}
+void button2Pressed() {
+    button_state = 2;
+    is_button_pressed = true;
+}
+
+int main(void)
+{
+    // button initialization
+//    InterruptIn button1(BUTTON1);
+//    InterruptIn button2(BUTTON2);
+    button1.mode(PullUp);
+    button2.mode(PullUp);
+    button1.rise(&button1Pressed);
+    button2.rise(&button2Pressed);
+    led1 = 0;
+
+    // just a simple service example
+    // o led1 characteristics, you can write from the phone to control led1
+    // o button characteristics, you can read and get notified
+    GattCharacteristic led1_characteristics(
+        LED1_UUID, &led_state, sizeof(led_state), sizeof(led_state),
+        GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ |
+        GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE);
+    led1_handler = led1_characteristics.getValueAttribute().getHandle();
+
+    GattCharacteristic button_characteristics(
+        BUTTON_UUID, &button_state, sizeof(button_state), sizeof(button_state),
+        GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | 
+        GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY);
+    
+    const uint8_t TEST_SERVICE_UUID[LENGTH_OF_LONG_UUID] = {
+        0xb0, 0xbb, 0x58, 0x20, 0x5a, 0x0d, 0x11, 0xe4,
+        0x93, 0xee, 0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b};
+    GattCharacteristic *charTable[] = {&led1_characteristics, &button_characteristics};
+    GattService testService(TEST_SERVICE_UUID, charTable,
+                            sizeof(charTable) / sizeof(GattCharacteristic *));
+
+    // BLE setup, mainly we add service and callbacks
+    ble.init();
+    ble.addService(testService);
+    ble.onDataWritten(&changeLED);
+    ble.onDisconnection(disconnectionCallback);
+    
+    // setup advertising
+    ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED |
+                                     GapAdvertisingData::LE_GENERAL_DISCOVERABLE);                      
+    ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME,
+                                     (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME));
+    ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
+    ble.setAdvertisingInterval(1600); /* 1000ms; in multiples of 0.625ms. */
+    ble.startAdvertising();
+
+    while (true) {
+        if (is_button_pressed) {
+            // if button pressed, we update the characteristics
+            is_button_pressed = false;
+            ble.updateCharacteristicValue(button_characteristics.getValueAttribute().getHandle(),
+                                          &button_state, sizeof(button_state));
+        } else {
+            ble.waitForEvent();
+        }
+    }
+}
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