The camera for capturing the face of the late comers was to be placed behind a clock. The clock was to be made of neopixel LEDs.
We used a Neo-pixel ring of 12 pixels and tried to incorporate the movement of a hour clock into it.
We used a RTC (Real Time Calculator) along with the Neo-Pixel LEDs.
The RTC gave the system the actual time and the neopixels were made to co-ordinate with the time.
The LED's were in sync with the hour clock, but when we tried to incorporate the minute and second hand in it, the clock showed results only till 12 minutes and seconds.
To use NeoPixel strips instead of Rings to build the prototype to make it fit on the form.
To program the NeoPixels in such a way that the seconds and minutes are incorporated within 24 pixels.