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Floobydust — Open Source experimentation

04 Jul

Time on my hands…


Someone in the Arduino forums mentioned they were having troubles with their Single Sided Arduino board that they built on their own.   It reminded me that I wanted to make one for myself.  I needed an extra Arduino I could use for RS485 testing and a NON-USB one was preferred.

What a great afternoon project this is.  I took the toner transfer PNG file and printed it out so I could use the laminator to do a toner transfer. Once it was etched I could really see the benefit of having a silkscreen on the topside… the trouble is, I’ve never done a board with imagerey on top.   I first tried using a heat transfer…  just like I did with the copper side but I had no luck.  After 10 times through the laminator I still had no luck bonding the toner with the fiberglass side.  (I sort of figured that would happen…)

I remembered that I had some 8 1/2 by 11 blank decal sheet on hand and thought maybe I could float the silk screen  side decal onto the surface.   OK… having never done this  before I’m going to now admit I was a bit overconfident,  this is really not easy.

Eventually I got it applied.  I lost a few bits here and there, but the important parts didn’t tear off.  I wanted to coat the decal with FUTURE floor wax but I could not locate the bottle I had for this purpose.  It would be a good idea though.

Anyway… here are the results.  Powered it up and loaded a sketch…  Yippie.

ssa1


Filed under: Electronic Projects


2 Responses to “Time on my hands…”

  1. By Kuku on Jul 3, 2010 | Reply

    Hello, friend. I have some problems with my Arduino Severino and I have accidentally found your link on arduino.cc forum. May you tell me what transistors do you use and why did you orientate them not like on the mounting diagram http://www.arduino.cc/en/Main/ArduinoBoardSerialSingleSided3 (flat part of the transistors is up orientated, not down)? If you can, please answer me by e-mail. Thank you

  2. By pete on Jul 16, 2010 | Reply

    Sure. The Board was designed for EU Style BC547 and BC557. While in the USA, I have more readily available 2N3904 and 2N3906. These devices are similar, but the pinout is different. To make them work with the designed board… I needed to flip them around, since Collector and Emitter pins are opposite on the USA style transistors.

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