From ae791b3f2661592d2dec4aeaa8584918d81d4d0a Mon Sep 17 00:00:00 2001
From: Evelyn Eastmond <evhan55@gmail.com>
Date: Fri, 31 May 2019 11:27:20 -0400
Subject: [PATCH] Don't send null pin.

---
 src/io/bt.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/io/bt.js b/src/io/bt.js
index 39d570b68..37b2c3a5e 100644
--- a/src/io/bt.js
+++ b/src/io/bt.js
@@ -61,7 +61,11 @@ class BT extends JSONRPCWebSocket {
      * @param {string} pin - an optional pin for pairing
      */
     connectPeripheral (id, pin = null) {
-        this.sendRemoteRequest('connect', {peripheralId: id, pin: pin})
+        const params = {peripheralId: id};
+        if (pin) {
+            params.pin = pin;
+        }
+        this.sendRemoteRequest('connect', params)
             .then(() => {
                 this._connected = true;
                 this._runtime.emit(this._runtime.constructor.PERIPHERAL_CONNECTED);