diff --git a/ESP32/platformio.ini b/ESP32/platformio.ini
index c647c9e..a8bf748 100644
--- a/ESP32/platformio.ini
+++ b/ESP32/platformio.ini
@@ -80,3 +80,9 @@ lib_deps = greiman/SdFat@^2.1.2
 build_flags = -std=gnu++17 -DESP32=1 -ggdb3 -D_GLIBCXX_USE_C99 -DBOARD_HAS_PSRAM -mfix-esp32-psram-cache-issue -DCONFIG_SPIRAM_USE_MALLOC -DTTY_SERIAL_TX=17 -DTTY_SERIAL_RX=18 -DNEOPIXELS_PIN=40 -fexceptions
 build_unflags = -std=gnu++11
 extra_scripts = pre:prepare.py
+# SD    ESP
+# CS:   12
+# MOSI: 11
+# MISO:  9
+# SCK:   7
+