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FunHouse display accumulating glitches
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FunHouse display accumulating glitches

by steveputz on Sun May 16, 2021 8:33 pm

Running the Adafruit_CircuitPython_FunHouse simpletest, the display starts clean, but accumulates an increasing number of "glitches" at random locations in the regions not being updated with new values.

Is anyone else experiencing this?
funhouse-display-glitches3.jpg
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Re: FunHouse display accumulating glitches

by adafruit_support_carter on Mon May 17, 2021 3:17 pm

Weird. Can you try also with this SelfTest UF2:
https://learn.adafruit.com/adafruit-fun ... st-example

It's written in Arduino, but you don't need to actually have Arduino installed. Just put the board in bootloader mode, same way as with CircuitPython:
https://learn.adafruit.com/adafruit-fun ... -3089489-6
and then copy the SelfTest UF2 over.

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Re: FunHouse display accumulating glitches

by jerryn on Mon May 17, 2021 3:20 pm

I see the same thing with the CircuitPython demo.

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Re: FunHouse display accumulating glitches

by steveputz on Mon May 17, 2021 5:39 pm

As expected, I do not see glitches on the Arduino test program, only under CircuitPython.

I suspect it is a problem with the CircuitPython handling of the display (maybe timing or interrupts?).
Do you recommend we avoid CircuitPython and program with Arduino instead? -- disappointing, if so.

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Re: FunHouse display accumulating glitches

by adafruit_support_carter on Mon May 17, 2021 7:20 pm

Thanks for checking. Just wanted to make sure it wasn't hardware related. It did not look like it, but wanted to verify.

Seems like something is happening with CircuitPython and we'll take a look into this.

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Re: FunHouse display accumulating glitches

by adafruit2 on Tue May 18, 2021 11:43 am


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Re: FunHouse display accumulating glitches

by paulritik_09 on Sat Jun 12, 2021 3:04 am

I have saw the same thing with the Circuit Python demo

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