First you will have to solder the 12 RGB LEDs in parallel, stripping out the three wires (5v, Gnd, control), then test the LEDs before sticking them to the back of the clock.

Cut down small pieces from the double face tape and place them adjacently to the 12 clock numbers (Figures), then stick the 12 LEDs on them.

Make sure the three stripped wires are clear and little bit tall to connect them to Arduino & 1Sheeld.

Upload the code and make sure that the sketch compiles without errors, then switch 1Sheeld UART switch to the uploading mode, upload, then switch back to communication mode as stated in the video. If you have any problems in uploading, check the 1Sheeld troubleshooting guide.

open 1Sheeld app, then choose the Clock and Internet shields, (you may open the Terminal shield to check the code status)

Finally press Arduino’s reset button to send the Http requests to 1Sheeld application and the clock will show you the best time to go home