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Kinda sorta almost worked

A project log for LED Matrix Controller

A project to control a 32x16 or 64x32 LED matrix with a (beefy) microcontroller

michael-cullenMichael Cullen 03/19/2018 at 14:522 Comments

After sitting around for months I finally got around to attempting to solder up a board. It was going quite well until I made a complete mess of the qfp-144 stm32f417 which turned into a mess of solder blobs I couldn’t shift. I’m not sure if my iron wasn’t transferring heat properly or I just suck at it, but attempting to drag solder it just didn’t work out - maybe it was because I was using lead free solder but the blob stuck to the first pins and wouldn’t move down as I dragged the iron over it. Anyway I have some breakout boards for smaller parts of a similar pitch on the way and I will try again on those first before trying the led matrix board again

Discussions

Ted Yapo wrote 03/19/2018 at 15:31 point

Lead-free solder sucks.

Did you try adding flux?  A lot of flux?

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Michael Cullen wrote 03/19/2018 at 15:54 point

yeah I tried loads of flux but maybe I tried it too late. 

  Are you sure? yes | no