Fix arduino#444 BLEPeripheral::connected() always returns false

sgbihu · sgbihu · commit 303e5b414348 · 2017-02-20T09:39:50.000+08:00
1. Root casue: the stack need use connected device to get the state.
    The current code used local address to get the link and get an error.
2. Solution: Use central's address to get connection state.
diff --git a/libraries/CurieBLE/src/BLEPeripheral.cpp b/libraries/CurieBLE/src/BLEPeripheral.cpp
@@ -146,7 +146,8 @@ BLECentral BLEPeripheral::central(void)
 
 bool BLEPeripheral::connected(void)
 {
-    return BLE.connected();
+    BLEDevice centralBle = BLE.central();
+    return centralBle.connected();
 }
 
 void BLEPeripheral::init()

Original file line number	Diff line number	Diff line change
`@@ -146,7 +146,8 @@ BLECentral BLEPeripheral::central(void)`
`146`	`146`
`147`	`147`	`bool BLEPeripheral::connected(void)`
`148`	`148`	`{`
`149`		`- return BLE.connected();`
	`149`	`+ BLEDevice centralBle = BLE.central();`
	`150`	`+ return centralBle.connected();`
`150`	`151`	`}`
`151`	`152`
`152`	`153`	`void BLEPeripheral::init()`