From f230c61efbca50bcd01392aefa9e53fc5fd30ce2 Mon Sep 17 00:00:00 2001
From: sorznal <heycoolbin@gmail.com>
Date: Tue, 14 Apr 2020 11:03:48 +0800
Subject: [PATCH] Set GPIO15 to OD mode in m5stack.cpp

if use M5GO button, need set gpio15 OD or PP mode to avoid affecting the wifi signal
---
 src/M5Stack.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/M5Stack.cpp b/src/M5Stack.cpp
index 035f476..a981c26 100644
--- a/src/M5Stack.cpp
+++ b/src/M5Stack.cpp
@@ -46,6 +46,9 @@ void M5Stack::begin(bool LCDEnable, bool SDEnable, bool SerialEnable, bool I2CEn
   if (SerialEnable == true) {
     Serial.println("OK");
   }
+
+  // if use M5GO button, need set gpio15 OD or PP mode to avoid affecting the wifi signal  
+  pinMode(15, OUTPUT_OPEN_DRAIN);
 }
 
 void M5Stack::update() {