diff --git a/ReadAnalog/platformio.ini b/ReadAnalog/platformio.ini
index 67e8cb2..c39bcf8 100644
--- a/ReadAnalog/platformio.ini
+++ b/ReadAnalog/platformio.ini
@@ -8,7 +8,20 @@
 ; Please visit documentation for the other options and examples
 ; https://docs.platformio.org/page/projectconf.html
 
+; uncommdent ONE of the three sections below only
+
+; [env:upesy_wroom]
+; platform = espressif32
+; board = upesy_wroom
+; framework = arduino
+
 [env:megaatmega2560]
 platform = atmelavr
 board = megaatmega2560
 framework = arduino
+
+; [env:uno]
+; platform = atmelavr
+; board = uno
+; framework = arduino
+