The Poor-mans USB2TTL adapter on Flickr – Photo Sharing!
From the MakerBot Flickr Pool, Dawning.ca made his own USB2TTL adapter!
I didn’t have a USB2TTL cable laying around and so I looked in to what one entails. Turns out the magic in those cables I already had in a break-out board.. I just soldered on a header and used a little breadboard to pull over the pins I needed. But alas, it didn’t matter. All the magic was gone from that FTDI chip anyway. Though I’ve ordered another one of those rather than paying more for a whole cable that doesn’t give me the same flexibility.
The Poor-mans USB2TTL adapter on Flickr – Photo Sharing!.
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2 Comments so far
Dawning
Sadly I haven’t actually managed to get this working. I *thought* the problem was my FT232RL chip was fried, but now that I have another one I’m certain that isn’t the problem. I wasn’t sure if in this application the intended logic levels of 3.3V would actually be a factor – so I just tried modifying the board to use 5V logic levels, but this too didn’t seem to cut it.
I’m sure I’ll figure it out though.. The chip used in that cable people are using is very very very very closely related to the one on this board, so closely related that I think the only actual difference is that the other chip is smaller.. I suspect the only real problem is in the configuration of the hardware itself. I’ll keep on it. It can’t hold out against my efforts forever, can it?
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