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waveshareteam
2.13 inch HAT showing static pattern and not responding to example code
I am using a Raspberry Pi ZeroW and am trying to use the Python3 example code to work with my display. It just shows a static pattern and doesn't respond at all when I run the example code from this repo. I've installed all the dependencies it says to and checked to make sure all the pins works. How do I fix this?
Hello, I did find this problem recently, which may be caused by the long reset time of low level. Try to reduce the low level delay time (<2ms) in reset(self). In addition, may I ask whether the C program can be used normally?
@SSYYL the C programs don't work either. It may just be a hardware connection issue.
It was the hardware design that caused some of the problems. Try further shortening the low level time by, like 0.2ms.
I found a bug https://github.com/waveshare/e-Paper/issues/198 maybe this is related. Width was set to 128, not 122
But I primarily tried the python code and that didn't work either. It's not limited to C.
On Tue, Sep 28, 2021, 1:22 PM Yaroslaff Fedin @.***> wrote:
I found a bug #198 https://github.com/waveshare/e-Paper/issues/198 maybe this is related. Width was set to 128, not 122
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Sorry to hear that. two of the units i tried work on raspberry with the provided py code. I used 2.13 touch version.
Another screen (not the same company or type) worked after I re soldered, so I think it may be a connection issue. I'll try this screen again on next Pi project.
On Tue, Sep 28, 2021, 1:29 PM Yaroslaff Fedin @.***> wrote:
Sorry to hear that. two of the units i tried work on raspberry with the provided py code. I used 2.13 touch version.
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