From 304be96dd6d656be5bf7555dcd0ee1f471691885 Mon Sep 17 00:00:00 2001
From: Dave Conway-Jones <conway@uk.ibm.com>
Date: Sun, 2 Jul 2017 00:50:55 +0100
Subject: [PATCH] stop gpis node reporting bad status message on slow Pi

---
 nodes/core/hardware/36-rpi-gpio.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/nodes/core/hardware/36-rpi-gpio.js b/nodes/core/hardware/36-rpi-gpio.js
index 15c1c9b75..f65ded6d5 100644
--- a/nodes/core/hardware/36-rpi-gpio.js
+++ b/nodes/core/hardware/36-rpi-gpio.js
@@ -69,6 +69,7 @@ module.exports = function(RED) {
             node.child.stdout.on('data', function (data) {
                 var d = data.toString().trim().split("\n");
                 for (var i = 0; i < d.length; i++) {
+                    if (d[i] === '') { return; }
                     if (node.running && node.buttonState !== -1 && !isNaN(Number(d[i])) && node.buttonState !== d[i]) {
                         node.send({ topic:"pi/"+node.pin, payload:Number(d[i]) });
                     }