diff --git a/README.md b/README.md
index 264f0e3..8fd8202 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,15 @@
-# DIY-Filament-Dryer
\ No newline at end of file
+# DIY-Filament-Dryer
+
+Diy filament dryer based on WeMos D1 mini and SunLu S1 drybox (for nice looking box).
+
+BOM:
+- ESP8266 (WeMos D1 mini)
+- BME280 (as I already have it)
+- DS18B20 (as I already have it)
+- Heaters x2 (https://aliexpress.ru/item/1005004051777634.html)
+- Mosfet boards x5 (https://aliexpress.ru/item/1005002307486977.html)
+- I2C 0.96" OLED Display (https://aliexpress.ru/item/1005004860363043.html)
+- Rotary encoder (https://aliexpress.ru/item/1005001580457385.html)
+
+I have used BME280 as internal temp sensor, some DS18B20 as heater sensors.
+