Friday Night Hack 2: Real 16f628 Binary Clock on PCB

Written by walle

Transferred the Binary Led clock from breadboard onto a pcb.
Also added an extra green hour led. This way we can display hours from 0-23 using 5 leds (so yes the total possible combinations would be 32) instead of the analogue version which shows 0-12 with 4 leds.



Ow yes, the time here is 11:06 AM.

The breadboard version along with some code can be found here : binclock on breadboard

Here's a test run or rather debugging run (where every second a minute is increased, so running at 60*regular speed). This way it has a little more action :



Here is the schematic:


This costs about 5 euro in parts (including the pic16f628a or even pic16f627a works fine too).

It is different from the commercial binary clocks (and thus original):
16h23
will be shown as
10000 010111

Whereas on the commercial binclocks it is shown as
00001 01010 00010 00011

The commercial ones only teach you binary numbers from 0 to 9.
This one teaches you binary numbers from 0 to 59




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