Ok so here is the story, I am working on a project, at the time I have no power switch hooked up to my DC adapter so I am reaching down and unplugging it from the power strip, that in itself is inconvenient, but Thursday night I got my finger on one of the prongs and got bit by mains current (which is no fun)
Usually I just put a little switch inline with the cord of the DC jack, but I switch tween a few different ones (9v 12v and 15v for different reasons) and B whenever I get a 2.1mm jack it only lasts a month at best before it goes on someones laptop or whatever, and my cords get shorter, Im tired of re-doing switches and etc. I decided I was going to put a switch on my BBB Arduino
The problem with that is the BBB Arduino uses 3 atoms wide pcb pads and removing something from it is impossible without destroying the pad, I had encountered that when I put it together, but somehow thought I could get around it now... NOPE! dead arduino (fixable but a pain)
At that point I said screw it, I am going to make an Arduino that suits my needs and my workspace, and because I am a sick s.o.b. I did it on perfboard using uninsulated wire ![]()
Now mind you this is not my best example of perfboarding with bare wire, it was made mostly out of frustration and a since of "lets get this done ASAP so I can get back to my project". Adding onto it I decided to use a board that I had sprayed with black lacquer about 4 months ago, and the pads have been scrubbed down 3 times since then with an abrasive pad, so they funk up real quick and are a bit thin (fun times!) so please dont hold me to perfect art of soldering on this thing lol, it was rough!
anyway, its similar to the BBB (thought wise) and not sheild compatible, I rather like having all my pins accessible from the front of the board, also since I use a serial port, its a serial model with a modern device rs232<>ttl serial level shifter / inverter connected by a ribbon cable assembly, other wise heres what I did
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no more 2.1mm power jack, I now have a dual screw terminal on the left side, cause thats where my power is. Since the screw terminal is obviously not polarized diode protection gets changed from your standard 1 diode to a 1.5 amp full bridge rectifier (you can plug it in any way you want and its right)
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ribbon cable is on the right rear of the board, this is great cause my serial connection snakes tween my lcd and my o-scope on the right, my old board had it on the left front adding to clutter
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added sockets for 14 pin and 8 pin attiny chips, and they are wired up to the 328 for use in programming, they also have a jumper to send power to one of the sockets when needed
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added a freaking power switch (I dont know why this is not standard on all boards)
pictures
and why yes it works perfectly ![]()