diff --git a/README.md b/README.md
index c6fc6af..030cebb 100644
--- a/README.md
+++ b/README.md
@@ -12,15 +12,15 @@ Open hardware design (powered by KiCAD).
 The complete PCB is stored in the ***board*** sub directory.
 
 There the following components are connected:
-* ESP32 NodeMCU Module (the one of A-Z Delivery was used)
-* Lipo
+* ESP32 **16MB flash required**
+* Lipo monitoring (DS2438)
 * 7 moist sensors
 * 7 pump
 * DC-DC convert (generating voltage from Lipo for pumps)
 * DS18B20 temperature sensors
-* water tank ultrasonic sensor (via JSN-SR04T-2.0)
+* water level via laser distance sensor (VL53L0X)
 * DS2438 battery monitor
-* general purpose expansion pin
+* general purpose expansion pins
 
 # Software
 The firmware for the controller is stored in ***esp32*** sub directory.
diff --git a/esp32/Readme.md b/esp32/Readme.md
index f531a56..db1e3b3 100644
--- a/esp32/Readme.md
+++ b/esp32/Readme.md
@@ -1,7 +1,17 @@
 # PlantControl
 ## Hardware
 
-Uses ESP32MiniKit
+Main processor
+* ESP32 with 16MB Flash 
+
+One-Wire
+* Temperatur Sensor (DS18B20)
+* Lipo-Monitoring (DS2438)
+
+Lipo Protection
+* Open drain 3.3V detector (CN61CN33 @ jlcpcb parts)
+
+
 
 ### Used Pins:
 * See '''include/ControllerConfiguration.h'''
@@ -16,9 +26,9 @@ Uses ESP32MiniKit
  * 7 Pumps
  * Sensors
   * Solar powered (voltage)
-  * Lipo-Powered (voltage)
+  * Lipo-Powered (DS2438 for monitoring)
   * Temperature
-  * Distance sensor [JSN-SR04T-2.0] (for waterlevel)
+  * Laser distance sensor [VL53L0X]
  * Custom GPIO
 
 ## Documentation of Power-Modes