Hi all.
Just a quick pride post.
Yesterday I made this! Squee!
Finally doing the things on my to do list that I got the parts for a year or two ago.
It went faultlessly from LTspice to pencil and paper stripboard planning to soldering... was only when I tried to put holes in the board for the big terminals that a mini disaster happened and the board split, but worked around it.
Cutting the holes in the box is still the hardest part of all this for my cos it's bit I'm newest too. Dremel still scares me a bit and my better half was sleeping, so did it by hand.
Stripboard planning was interesting, took a while before I got a layout that just clicked and took a minimum of space and just fitted on a bit of spare board I had.
Strange choice for battery I know, but the sweet spot for this 2.5V ref is 10V (around 9V to 12V seems accurate enough) and it also meant I could use a small cheap project box I had.
Started with an 2 x NPN circuit for battery LEDs from the web then reworked it for 2 x PNP (because the bi colour LED was common cathode) and adjusted the values to minimise current usage whilst balancing LED brightness and green/red switch over point. 6mA in use, which should be fine with this battery for occasional use.
Need to meet up with some makers at some point to get it trimmed as accurately as I can get it. Plus I need more electronicy friends really anyway, else I'm gong to end up just posting pictures of what I make on the Internet and boring people instead.
Julie
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