2023-02-19 (Su) EWC_Box Screen example

I changed the high/low state for the screen's RESET pins because I was unsure how it was meant to operate, but this did not fix the problem. I checked if the backlight was on a PWM pin, but it was not. I swapped out the screen for a spare I had, but it behaved the same. The last thing I tried with this controller and screen was to power all the pins from 5V signals instead of routing them through a level shifter. I even retested the SD adapter to ensure I did not break any wires.

I brought out a spare Arduino Mega and a spare screen to test with default settings and pins. I found that the "PWM" in the program responds backward, so I ran that wire to a "GND" connection to keep the light active. I had to tie the "RESET" pin to 3.3V at startup, which was good to know, and the screen ran the example program. I am pleased to have a known-good configuration.
Example program

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

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