This is an extremely small version of the drawdio tone generator.
For this build i have used 01005 capacitors and resistors, these are 0.2x0.4mm in size and pretty hard to hand solder without magnification.
the whole board is about 12x13mm and the leg pitch of the 555 is 0.635mm.
Distance between the three 01005 components placed in a row is 0.6mm.
There are a total of five 01005 components on the board.
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Latest update 2012-11-24