I wanted to start creating visuals for the device, but my screens stopped working. I made all the necessary changes and followed all my findings, but I could not get the one in my enclosure or my spare hardware to work. This was getting old. I tried the same steps to isolate the problem by manually triggering pins and physically connecting terminals, but nothing worked. I deleted and reinstalled the drivers, but the best I could manage was a faint screen image and a clear view if I held the reset button.
The problem may have come from the 5V signals on several pins, while the rest of the module used 3.3V. When I connected the main power to 5V, I saw vibrant colors, but the picture was jittery, so I would wager overvoltage harms the chip. I soldered pins to a four-channel level shifter and added it to the system. I fed two inputs from an Arduino, but they worked best when I tied them to Vcc or GND. I did all the experimenting on a small solderless breadboard.
Level shifter helping the screen
The rest of the posts for this project have been arranged by date.
First time here?
Completed projects from year 1
Completed projects from year 2
Completed projects from year 3
Completed projects from year 4
Completed projects from year 5
Completed projects from year 6
Completed projects from year 7
Completed projects from year 8
Disclaimer for http://24hourengineer.blogspot.com and 24HourEngineer.com
This disclaimer must be intact and whole. This disclaimer must be included if a project is distributed.
All information on this blog, or linked by this blog, is not to be taken as advice or solicitation. Anyone attempting to replicate, in whole or in part, is responsible for the outcome and procedure. Any loss of functionality, money, property, or similar, is the responsibility of those involved in the replication.
All digital communication regarding the email address 24hourengineer@gmail.com becomes the intellectual property of Brian McEvoy. Any information contained within these messages may be distributed or retained at the discretion of Brian McEvoy. Any email sent to this address, or any email account owned by Brian McEvoy, cannot be used to claim property or assets.
Comments to the blog may be utilized or erased at the discretion of the owner. No one posting may claim property or assets based on their post.
This blog, including pictures and text, is copyright to Brian McEvoy.
2022-02-22
The problem may have come from the 5V signals on several pins, while the rest of the module used 3.3V. When I connected the main power to 5V, I saw vibrant colors, but the picture was jittery, so I would wager overvoltage harms the chip. I soldered pins to a four-channel level shifter and added it to the system. I fed two inputs from an Arduino, but they worked best when I tied them to Vcc or GND. I did all the experimenting on a small solderless breadboard.
The rest of the posts for this project have been arranged by date.
First time here?
Completed projects from year 1
Completed projects from year 2
Completed projects from year 3
Completed projects from year 4
Completed projects from year 5
Completed projects from year 6
Completed projects from year 7
Completed projects from year 8
Disclaimer for http://24hourengineer.blogspot.com and 24HourEngineer.com
This disclaimer must be intact and whole. This disclaimer must be included if a project is distributed.
All information on this blog, or linked by this blog, is not to be taken as advice or solicitation. Anyone attempting to replicate, in whole or in part, is responsible for the outcome and procedure. Any loss of functionality, money, property, or similar, is the responsibility of those involved in the replication.
All digital communication regarding the email address 24hourengineer@gmail.com becomes the intellectual property of Brian McEvoy. Any information contained within these messages may be distributed or retained at the discretion of Brian McEvoy. Any email sent to this address, or any email account owned by Brian McEvoy, cannot be used to claim property or assets.
Comments to the blog may be utilized or erased at the discretion of the owner. No one posting may claim property or assets based on their post.
This blog, including pictures and text, is copyright to Brian McEvoy.
2022-02-22
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