BlogHide Resteemsspemo (25)in dtube • 6 years agoRelay clock version 2The second version of the relay clock - enjoy! ▶️ DTube ▶️ IPFSspemo (25)in dtube • 6 years agoRelay Clock - the first projectIn this Video you will see the build of a relay clock. The time counting is done by relays and transistors to to delay turn on time to another relay. All it uses is a 1Hz signal with a short high…