Diff: main.cpp

Revision:

12:4024aa3f72b0

Parent:

8:45beed07b093

Child:

13:60e095fe4b45

--- a/main.cpp	Wed Nov 05 14:18:56 2014 +0000
+++ b/main.cpp	Mon Dec 15 08:10:46 2014 +0000
@@ -1,5 +1,5 @@
 /* mbed Microcontroller Library
- * Copyright (c) 2006-2013 ARM Limited
+ * Copyright (c) 2006-2014 ARM Limited
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,67 +20,48 @@
 
 BLEDevice  ble;
 
-DigitalOut led1(LED1);
-
-#define NEED_CONSOLE_OUTPUT 0 /* Set this if you need debug messages on the console;
-                               * it will have an impact on code-size and power
-                               * consumption. */
-
-#if NEED_CONSOLE_OUTPUT
-Serial  pc(USBTX, USBRX);
-#define DEBUG(...) { pc.printf(__VA_ARGS__); }
-#else
-#define DEBUG(...) /* nothing */
-#endif /* #if NEED_CONSOLE_OUTPUT */
-
-BatteryService *batteryServicePtr = NULL;
+DigitalOut led1(LED1, 1);
+Ticker t;
 
 void disconnectionCallback(Gap::Handle_t handle, Gap::DisconnectionReason_t reason)
 {
-    DEBUG("Disconnected handle %u!\n\r", handle);
-    DEBUG("Restarting the advertising process\n\r");
+    printf("Disconnected handle %u!\n\r", handle);
+    printf("Restarting the advertising process\n\r");
     ble.startAdvertising();
 }
 
-/**
- * Runs once a second in interrupt context triggered by the 'ticker'; updates
- * battery level if there is a connection.
- */
-void periodicCallback(void)
+void blink(void)
 {
-    led1 = !led1; /* Do blinky on LED1 while we're waiting for BLE events */
-
-    if (ble.getGapState().connected) {
-        /* Update battery level */
-        static uint8_t batt = 50;
-        batt++;
-        if (batt > 100) {
-            batt = 72;
-        }
-        batteryServicePtr->updateBatteryLevel(batt);
-    }
+    led1 = !led1;
 }
 
 int main(void)
 {
-    led1 = 1;
-    Ticker ticker;
-    ticker.attach(periodicCallback, 1);
+    uint8_t batteryLevel = 50;
+    t.attach(blink, 1.0f);
 
-    DEBUG("Initialising the nRF51822\n\r");
+    printf("Initialising the nRF51822\n\r");
+
     ble.init();
     ble.onDisconnection(disconnectionCallback);
 
     /* setup advertising */
     ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED);
     ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
-    ble.setAdvertisingInterval(160); /* 100ms; in multiples of 0.625ms. */
+    ble.setAdvertisingInterval(Gap::MSEC_TO_ADVERTISEMENT_DURATION_UNITS(1000)); /* 1000ms; in multiples of 0.625ms. */
     ble.startAdvertising();
 
-    BatteryService batterService(ble);
-    batteryServicePtr = &batterService;
+    BatteryService batteryService(ble, batteryLevel);
 
     while (true) {
-        ble.waitForEvent();
+        ble.waitForEvent(); // this will return upon any system event (such as an interrupt or a ticker wakeup)
+
+        // the magic battery processing
+        batteryLevel++;
+        if (batteryLevel > 100) {
+            batteryLevel = 20;
+        }
+
+        batteryService.updateBatteryLevel(batteryLevel);
     }
 }