diff --git a/lib/treppe/treppe.cpp b/lib/treppe/treppe.cpp
index d540af4..40e6045 100644
--- a/lib/treppe/treppe.cpp
+++ b/lib/treppe/treppe.cpp
@@ -281,6 +281,10 @@ void Treppe::setup() {
   pwmController.setPWMFrequency(100);
   // pwmController.setAllChannelsPWM(idle_pwm);
 
+  // WARNING: before getting Parameters of Flash, make sure plausible parameters
+  // are written in flash!
+  EEPROM.get(EEP_START_ADDR, parameters); // get Parameters of flash
+
   pinMode(13, OUTPUT);
   pinMode(0, OUTPUT);
   digitalWrite(13, HIGH);
@@ -294,6 +298,11 @@ void Treppe::setup() {
 
   Serial.printf("Treppe: stufen=%d\n", stufen);
 }
+void Treppe::saveParam() {
+  EEPROM.put(EEP_START_ADDR,
+             parameters); // copy Parameters so "EEPROM"-section in RAM
+  EEPROM.commit();        // write "EEPROM"-section to flash
+}
 
 void Treppe::set_idle_pwm_max(const uint16_t value,
                               const vorgabe_typ_t vorgabe_typ) {
@@ -306,6 +315,7 @@ void Treppe::set_idle_pwm_max(const uint16_t value,
   if (parameters.idle_pwm_max > parameters.active_pwm) {
     parameters.idle_pwm_max = parameters.active_pwm;
   }
+  saveParam();
 
   Serial.printf("Treppe: parameters.idle_pwm_max=%d\n",
                 parameters.idle_pwm_max);
@@ -323,6 +333,7 @@ void Treppe::set_active_pwm(const uint16_t value,
   if (parameters.active_pwm > 4095) {
     parameters.idle_pwm_max = 4095;
   }
+  saveParam();
 
   Serial.printf("Treppe: parameters.active_pwm=%d\n", parameters.active_pwm);
 }
@@ -331,6 +342,8 @@ void Treppe::set_time_ldr(const uint16_t value) {
   parameters.time_ldr = value;
   if (parameters.time_ldr > TIME_MS_MAX)
     parameters.time_ldr = TIME_MS_MAX;
+  saveParam();
+
   Serial.printf("Treppe: time_ldr=%d\n", parameters.time_ldr);
 }
 
@@ -338,6 +351,8 @@ void Treppe::set_time_per_stair(const uint16_t value) {
   parameters.time_per_stair = value;
   if (parameters.time_per_stair > TIME_MS_MAX)
     parameters.time_per_stair = TIME_MS_MAX;
+  saveParam();
+
   Serial.printf("Treppe: time_per_stair=%d\n", parameters.time_per_stair);
 }
 
@@ -349,6 +364,7 @@ void Treppe::set_ldr_schwelle(const uint16_t value,
   } else if (vorgabe_typ == VORGABE_12BIT) {
     // parameters.ldr_schwelle = value;
   }
+  saveParam();
 
   Serial.printf("Treppe: ldr_schwelle=%d\n", parameters.ldr_schwelle);
-}
+}
\ No newline at end of file
diff --git a/lib/treppe/treppe.h b/lib/treppe/treppe.h
index 64c0aca..ce88dbe 100644
--- a/lib/treppe/treppe.h
+++ b/lib/treppe/treppe.h
@@ -3,6 +3,7 @@
 
 #include "FSMTreppe3/FSMTreppe3.h"
 #include "PCA9685.h"
+#include <EEPROM.h>
 
 // #define LDRDEBUG  // comment in to override LDR measurement
 #define LDR_HYS 1 // Hysteresis for switching off FSM [lux]
@@ -16,6 +17,8 @@
 
 enum vorgabe_typ_t { VORGABE_PROZENT = 0, VORGABE_12BIT = 1 };
 
+#define EEP_START_ADDR 100      // define Start Address for "EEPROM" storage -> depends on size of "wifi_data"!
+
 class Treppe {
 private:
   const uint8_t stufen;
@@ -95,6 +98,7 @@ public:
   void task(); // call periodically
 
   // Parameter section
+  void saveParam();
   void set_idle_pwm_max(const uint16_t value, const vorgabe_typ_t vorgabe_typ);
   void set_active_pwm(const uint16_t value, const vorgabe_typ_t vorgabe_typ);