Binary Clock - back

Posted by barnoid Fri, 29 Dec 2006 19:06:09 GMT

Binary Clock - back
See the diagram for more information.

Binary Clock - front

Posted by barnoid Fri, 29 Dec 2006 19:06:09 GMT

Binary Clock - front
See the diagram for more information.

Binary Clock - prototype

Posted by barnoid Fri, 29 Dec 2006 19:06:09 GMT

Binary Clock - prototype
See the diagram for more information.

Binary Clock - block diagram

Posted by barnoid Fri, 29 Dec 2006 19:06:09 GMT

Binary Clock - block diagram
I attempted to make a binary clock as a Christmas present for scribe. It uses 4000 series CMOS logic ICs. This is a block diagram. It has a quartz pulse circuit which is divided down from 32768Hz to 2Hz by the 4060. This then drives a 4024 7bit counter for seconds connected to a 4 input AND gate, half of a 4082, which in turn drives the clock input of another 4024 which counts minutes. A similar thing happens for minutes to hours. Blue circles in the diagram indicate where the blue LEDs and accompanying resistors attach. The diagram doesn’t show where the switches for setting the hours and minutes attach. This circuit works fine when assembled on breadboard, but for some reason I haven’t yet worked out it doesn’t work when soldered on stripboard.

Dog Statue

Posted by barnoid Mon, 18 Dec 2006 20:17:31 GMT

Dog Statue
Nobody in the Guess Where Brighton pool has worked out where this is yet. So I’ve given you a clue.

Carefree Stripper

Posted by barnoid Fri, 08 Dec 2006 15:52:38 GMT

Carefree Stripper
Handy for lighthearted stag parties.