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FT232BM in x0xb0x #888

Detail of the FT232BM USB to Serial adapter which is IC25 in the newer x0xb0x designs. It is used for updating firmware and remotely editing saved programs.

Either I’ve become a bit better at soldering, or things like the FT232BM in the x0xb0x are easier than I recall. I’ve finished the IO board so it’s time to wash and test it, then move on to the main PCB.

Here’s an amusing (to me) photo of solder dust from below the brass pad in the iron stand. Note the black cable tie at the top for scale.

Oh, also, this assembly is once again reminding me of my very dislike for cornrowed (upended) resistors. They take 3x as long to fit as normal, flat ones. Also, when there are 50 of one value of resistor right next to each other, maybe resistor networks would be a good idea?

UPDATE: Here’s the same chip, with most of the flux removed. There is still a very small residual amount of non-water-soluble flux left, which was removed after this picture was taken.

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