Boards have arrived

A project log for Freeduino 4809

This is an Arduino Uno Wifi2 derivative (atmega4809) with the WiFi and other "extra" features deleted.

WestfWWestfW 06/23/2019 at 05:141 Comment

Boards have arrived.   I made some errors on the bottom silkscreen, and there are some other things I don't like WRT which vias I had tented, but they look pretty good.  (Even the slots of the power connector look rightl the advantage of starting with someone else's part definition, or perhaps clever engineers at PCBWay...)

Now to try to muster the courage to solder those 0.5mm-pitch TQFPs :-(

(The bottom boards are 4809 DIP "completers"...)


Sander van de Bor wrote 06/23/2019 at 20:44 point

Soldering the TQFP could be challenging, but just use a lot of flux, and almost no solder on your iron. Just tack the corners with your soldering iron before sliding across. Using a soldering wig helps to remove excessive solder, but the trick is to use almost no solder to start with. For the flux I like the Kester 186 Flux-pen.

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