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README: add changelog for v1

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King Kévin 2021-11-02 17:38:35 +01:00
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README.md
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@ -63,6 +63,18 @@ design choice
changelog
=========
v1
--
v0 needed dual side hand assembly, though hole soldering, and lead cutting.
v1 is an assembly friendly redesign.
it now uses only parts which can be SMD soldered.
all parts are on the top side of the board.
because the coin cell holder is also on top, I used a CR1220 holder instead of a CR2032 holder, so the board remains small.
for quick and infrequent cable tests, a 35 mAh CR1220 is sufficient.
since the battery can be side loaded, instead of top loaded, the holder is even smaller.
I also used different color LEDs for each test.
v0
--