March 15, 2010
about 2 years ago
Does this work with windows 8? I have 3 little $3 USB to 3.3V TTL boards that no longer work as well as a USB to serial cable. These all use a Prolific chip that seems to be “obsolete” so I’m looking for a replacement.
about 4 years ago
Yes. The problem was that I got a bad touch screen. I ordered another and the new one behaves as expected. Linear in X and Y. The new one has about 1K resistance in the Y direction instead of 2K and about 350 Ohms resistance in the X direction instead of 300.
I got one of these a few months ago and just started playing with it. The touch is very linear in the X direction (the short side) but is very non-linear in the Y direction. If I touch with a stylus about 1/5 of the way up the length (Y) the voltage varies based on where in X I touch. On the right hand side the voltage rises very quickly as I move in Y then not much at all near the top. On the left hand side the voltage rises linearly with distance. The only way for me to calibrate this away is by forcing the user to tap many points which makes it useless. <br />
Do I just have a bad screen or are they all like this? If it is just a bum part, I’ll order another and remember to fully test it out before letting it sit around.
No public wish lists :(
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