Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Scan issue #245

Closed
tsctrl opened this issue Jan 13, 2022 · 5 comments
Closed

Scan issue #245

tsctrl opened this issue Jan 13, 2022 · 5 comments
Labels
help wanted Extra attention is needed not an issue with library This library works as expected, but something else is the root cause, such as AdaFruitGFX

Comments

@tsctrl
Copy link

tsctrl commented Jan 13, 2022

hi @mrfaptastic , @vortigont

this is not library issue. sorry as i am asking this here
i have issue on the scan lines pattern shown as below:

20220113_224034

could you guess what potential the culprit for this? is it a a,b,c,d lines might be not properly connected. or lat oe or clock issue or something else.

your experience on this and suggestion to investigate are really appreciated.
thanks at the earliest!
@mrcodetastic
Copy link
Owner

Looks like an address line issue. I assume the image that you were trying to display looks fine for the lines that do show right?

@mrcodetastic mrcodetastic added not an issue with library This library works as expected, but something else is the root cause, such as AdaFruitGFX help wanted Extra attention is needed labels Jan 13, 2022
@tsctrl
Copy link
Author

tsctrl commented Jan 13, 2022 •
edited
Loading

yes, issue on horizontal lines. address mean abdc lines?

@tsctrl
Copy link
Author

tsctrl commented Jan 13, 2022

tested all address lines are all connected and have 1.6v from gpio

@mrcodetastic
Copy link
Owner

Yes. I mean abcde lines.

These panels are supposed to have 5v input. They work with 3.3v from the ESP 32 for a few chained panels... But 1.6? Way too low

@tsctrl
Copy link
Author

tsctrl commented Jan 14, 2022

yup, thats the reading i got from gpio on address pin referenced to main ground. i have fix the issue by replacing the esp32 mcu. not sure is a chip defect or bad soldering.

thanks @mrfap!

@tsctrl tsctrl closed this as completed Jan 14, 2022
@mrcodetastic mrcodetastic mentioned this issue Jan 14, 2022
Open
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Assignees
No one assigned
Labels
help wanted Extra attention is needed not an issue with library This library works as expected, but something else is the root cause, such as AdaFruitGFX
Projects
None yet
Milestone
No milestone
Development

No branches or pull requests
2 participants
@mrcodetastic @tsctrl