diff --git a/README.md b/README.md
index 449f472..f7429a3 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,7 @@
 # BTClock v2
 
 Improved code for BTClock with many features.
+Don't forget to copy `config.h.example` to `config.h`. Not necessary to adapt it, since everything should be configurable through the WebUI.
 
 ## Software
 
diff --git a/platformio.ini b/platformio.ini
index 50316e3..aa676d8 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -20,7 +20,7 @@ monitor_filters = esp32_exception_decoder, colorize
 extra_scripts = post:scripts/extra_script.py
 lib_deps = 
     bblanchon/ArduinoJson@^6.21.2
-    fbiego/ESP32Time@^2.0.0
+    fbiego/ESP32Time@^2.0.1
     zinggjm/GxEPD2@^1.5.2
     adafruit/Adafruit MCP23017 Arduino Library@^2.3.0
     adafruit/Adafruit NeoPixel@^1.11.0
@@ -56,7 +56,7 @@ build_flags =
   -D WITH_RGB_LED
   -D NEOPIXEL_COUNT=4
   -DASYNCWEBSERVER_REGEX
- ; -D WITH_BUTTONS
+  -D WITH_BUTTONS
   -D ARDUINO_USB_CDC_ON_BOOT
   -D HOSTNAME="\"btclock3\""
   -D CONFIG_ASYNC_TCP_PRIORITY=500
@@ -67,6 +67,7 @@ framework = arduino
 board = lolin_s3_mini
 board_build.partitions = partition.csv
 build_flags =
+  -D NO_DISPLAY
   -D IS_3C
   -D IS_S3
   -D CONFIG_FREERTOS_USE_TRACE_FACILITY
@@ -89,6 +90,22 @@ platform = espressif32
 board = esp32-s3-devkitc-1
 board_build.partitions = partition.csv
 ;upload_protocol = esp-builtin
+build_flags =
+  -D NO_DISPLAY
+  -D NO_MCP
+  -D IS_BW
+  -D WITH_RGB_LED
+  -D NEOPIXEL_COUNT=1
+  -D NEOPIXEL_PIN=38
+  -D CONFIG_ASYNC_TCP_PRIORITY=500
+  -DASYNCWEBSERVER_REGEX
+  -D HOSTNAME="\"btclocks3d\""
+
+[env:esp32_c6]
+platform = espressif32
+board = esp32-s3-devkitc-1
+board_build.partitions = partition.csv
+;upload_protocol = esp-builtin
 build_flags =
   -D NO_DISPLAY
   -D NO_MCP
diff --git a/src/config.h.example b/src/config.h.example
index 789076e..03e3404 100644
--- a/src/config.h.example
+++ b/src/config.h.example
@@ -19,4 +19,6 @@
 #define BITCOIND_RPC_PASS ""
 
 #define DEFAULT_FG_COLOR GxEPD_WHITE
-#define DEFAULT_BG_COLOR GxEPD_BLACK
\ No newline at end of file
+#define DEFAULT_BG_COLOR GxEPD_BLACK
+
+#define I2C_DEV_ADDR 0x55
\ No newline at end of file