From f5a0ac1bfc7e4017859d3f66e4e0b0db4d1b4092 Mon Sep 17 00:00:00 2001
From: Babibubebon <babibubebon@babibubebo.org>
Date: Mon, 20 Feb 2017 05:19:34 +0900
Subject: [PATCH] Fix open() of BLE Adaptor

---
 lib/adaptors/ble.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/lib/adaptors/ble.js b/lib/adaptors/ble.js
index 0ded55e..b408278 100644
--- a/lib/adaptors/ble.js
+++ b/lib/adaptors/ble.js
@@ -83,12 +83,14 @@ Adaptor.prototype.open = function open(callback) {
     self._connectPeripheral(this.noblePeripheral, callback);
   } else {
     // connect to peripheral using noble
-    ble.on("discover", function(peripheral) {
+    var discoverCallback = function(peripheral) {
       if (peripheral.id === self.uuid) {
         ble.stopScanning();
+        ble.removeListener("discover", discoverCallback);
         self._connectPeripheral(peripheral, callback);
       }
-    });
+    }
+    ble.on("discover", discoverCallback);
 
     if (ble.state === "poweredOn") {
       ble.startScanning();