diff --git a/examples/arduino-blink/platformio.ini b/examples/arduino-blink/platformio.ini
index 840c806..ad383a4 100644
--- a/examples/arduino-blink/platformio.ini
+++ b/examples/arduino-blink/platformio.ini
@@ -7,22 +7,19 @@
 ; Please visit documentation for the other options and examples
 ; http://docs.platformio.org/page/projectconf.html
 
-[env:esp32dev]
-platform = espressif32
-framework = arduino
-board = esp32dev
-monitor_speed = 115200
-
 [env:esp wrover kit]
 platform = espressif32
 framework = arduino
 board = esp-wrover-kit
 monitor_speed = 115200
+build_flags =
+	; https://docs.espressif.com/projects/esp-idf/en/latest/get-started/get-started-wrover-kit.html#rgb-led
+	-D LED_BUILTIN=2
 
-[env:quantum]
+[env:esp32doit-devkit-v1]
 platform = espressif32
 framework = arduino
-board = quantum
+board = esp32doit-devkit-v1
 monitor_speed = 115200
 
 [env:lolin32]
diff --git a/examples/arduino-blink/src/Blink.cpp b/examples/arduino-blink/src/Blink.cpp
index b24679e..1b1c30f 100644
--- a/examples/arduino-blink/src/Blink.cpp
+++ b/examples/arduino-blink/src/Blink.cpp
@@ -6,10 +6,8 @@
 
 #include <Arduino.h>
 
-#ifndef LED_BUILTIN
-  // Set LED_BUILTIN if it is not defined by Arduino framework
-  #define LED_BUILTIN 13
-#endif
+// Set LED_BUILTIN if it is not defined by Arduino framework
+// #define LED_BUILTIN 2
 
 void setup()
 {