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How to get boards and solder parts? #10
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I'll try to answer your fabrication questions, and some questions from the omega forum post (i don't know if you are the same person or not 😁) . BoardsThe easiest thing is to just get it from OSHPark. They have good prices, deliver three boards and the shipping is free worldwide. I've already uploaded my v1.0 design on their website, so that you can order it with just a few clicks. SolderingSo, what you need to get started?
That's all you need. Given that you already have a soldering iron, the other things are cheap. Patience is free.
That's it. For ICs and parts with more pins i usually solder one pad first, make sure that the alignment is correct, then solder the diagonally opposite pin, then all the others, but the steps are basically the same. PartsFor the passives you can basically pick whatever you want, as long as they are the same value, same package, and same tolerance. All those specs and quantities are shown in the table in the README file. The only two ICs here are U1 and U2. U1 is USBLC6-2SC6. This is a TVS and diode protection array, specifically designed for USB ESD protection. It is not strictly necessary, but given that it's a very cheap part and provides additional protection, why not use it. Moreover, the docks from omega use a similar protection too. However, if you aren't going to use it short pad 1 with pad 6, and pad 3 with pad 4. DON'T short pad 2 and pad 5. That would be a short on the power supply U2 is just a basic 1117-3.3v. A linear 3.3v regulator. You can pick a 1117 3.3v or even another linear regulator, as long as it has the same package, the same footprint, and it's capable of supplying at least 500mA. There is a 1206 PTC fuse, anything from 1A to 1.5A should be good. Connector choice is critical to this project. I've indicated the exact part that i've used. If you can't find them you have two choices:
Then, pick two parts of 1x16 2mm female header, and you are done. I hope i've answered all the questions, if you have more please ask. |
I hope this isn't too noob-ish, but I'm not sure how exactly to use what you have in github to get me a few of these things.
The boards have to be ordered from somewhere, I believe...that's not a home-made pcb. SMD soldering is kinda scary too...not sure if my wife is going to like me baking chips in the oven. So, do you have suggestions/advice on this, or are you going to sell pre-built ones?
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