2.15 inch Waveshare E-Paper Display Not Turning On

Projects General Guidance
1

Hello all,
I am working on a project with the 2.15 inch e-paper display from waveshare: here

I have tried this on a 3.3V pro mini and an arduino uno and the example sketch does not work for me. It verifies and uploads with no errors but it just doesnt show anything on the screen.
I wired my screen as suggested in the table on the waveshare website:

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I have checked GxEPD but I can not seem to find the 2.15 inch on the github or when I try the example from the library. Though that is also giving me error about 'display' not being declared.
I would greatly appreciate any help.

2

Please post proper schematics showing all, and the powering for the setup You want replies to.

3

The arduino pro mini looks similar to this:

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image1029×521 197 KB

The arduino uno is:

8e3a980f0f964cc539b4cbbba2654bb660db6f52_arduino-uno-pinout-diagram
8e3a980f0f964cc539b4cbbba2654bb660db6f52_arduino-uno-pinout-diagram1089×779 141 KB

4

"Similar" is not good enough. Please post real schematics, not the manufactorer pin definitions.
I also don't see how the build is powered.

5

I only said similar because the one I got it from has a different reset button, its the same microcontroller:

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As for power, I am using a ftdi breakout for right now

6

Sales sites are uninteresting. They don't tell data and they don't tell how You connect them.
Late now, good night.

7

That link sez

Open the demo: 2in15_e-Paper_B\Arduino_R4\Arduino_R4.ino

which looks like the code is for the Arduino R4, which is different enough that it may be necessary to use it for that code.

a7

8

I connected it like this:

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the issue isnt my ftdi connection because I have programmed the arduino and they work, I have gotten sensor readings from BME280

9

thats what I kind of suspected but am unsure where else to find resources for this