paulpaulson thank you your sketch does turn on and off relays regularly but is not what I Need. My project should do as following: |R2 ON| 3s| R1 ON| 10s| R3 ON| 3s| R2 OFF| 10s| R4 On| 3s| R3 OFF| 10s| R5 ON| 3s| R4 OFF| 10s| R6 ON| 3s| R5 OFF| 10s| R7 ON| 3s| R6 OFF|10s| R8 ON|3s| R7 OFF| 10s| R1 OFF| 3s| R8 OFF|. No need for loop just only one button is pushed.