Hello all!
I can t understand how to use the eepromex library to write float values to my arduino Uno. Can somebody give an example? If there is another way to write float values to eeprom please tell me. Thank you in advance!
Is this the EEPROMex library ? Arduino Playground - EEPROMex
The normal EEPROM library has been improved since then. You can write a float to EEPROM with put() and get().
https://www.arduino.cc/en/Reference/EEPROMPut
https://www.arduino.cc/en/Reference/EEPROMGet
Do you understand the examples ?
The size of a 'float' on the Arduino Uno is 4 bytes, therefor you can write a float at location 0, location 4, 8, 12, and so on.
Thank you very much I din't know that! I will try and it and if I have a problem I will come back for more questions. 
Thanks again!