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How to Make an Affordable 'Vein Finder', for Use During Venipuncture
So I want to thank you for creating lots of work for me...hehehehe My son had to do a science experiment for school....my wife came upon this instructable and promptly put me to work making one. Only problem was I had to make two ...a Red one and a blue one because you had to prove that the Red light penetrates the flesh deeper than the blue...I changed it up slightly by making them run of a USB port on a PC. The blue one is quite cool to as it acts like a black light...easy to check for body fluids etc.
Awesome bowl....I'm just still in two minds....Do I like the front or the back more?
This is living proof that Small Electronic fairies do exist! That can be the only explanation how you got that tiny PCB soldered by hand....hehehe Excellent job done!