here are the build docs for the clk dv, so far theres no description to go along yet. but theres step by step pics of how to assemble one.

clkdv_builddocs


 

the 4040 ic must be the type that can run on up to 15V.

I use this one from mouser.. 4040 ic

the resistors marked: 1k/2, 1k/4, etc. correspond to values that can be changed according to the led color you’re using. i use 1k for red/yellow and 2k for green.

the various “led pads” listed in the BOM relate to 1 pin male jumpers for connecting the top and bottom boards. male and female headers may be used to connect the boards as well. but its tons of fun cutting 1 pin female headers….

clkdv_bompic


 

some screen prints for the recent batch of clk dvs turned out to be slightly off and not the most legible. heres pics of the first batch with a better print… the only thing cut off on this board is the 1 on the only 100k resistor on the right pic.  click to enlarge….

photo-4 photo-3

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