From 2c719b389490f01a0d2c620d6ae4e4f7adb25ba5 Mon Sep 17 00:00:00 2001
From: Deniz Etkar <denizetkar@gmail.com>
Date: Mon, 23 Mar 2020 16:01:32 +0300
Subject: [PATCH] fix: prevent RX pin from receiving garbage data

---
 src/NeoSWSerial.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/NeoSWSerial.cpp b/src/NeoSWSerial.cpp
index ce8edfe..c657097 100644
--- a/src/NeoSWSerial.cpp
+++ b/src/NeoSWSerial.cpp
@@ -135,7 +135,7 @@ void NeoSWSerial::listen()
   if (listener)
     listener->ignore();
 
-  pinMode(rxPin, INPUT);
+  pinMode(rxPin, INPUT_PULLUP);
   rxBitMask = digitalPinToBitMask( rxPin );
   rxPort    = portInputRegister( digitalPinToPort( rxPin ) );