Inky hat 13 inch - only half of the screen works

Support
1

Hi All

First time user of epaper. I purchase the inky impression 13inch recently and have been trying it out by directly plugging in the Pi zero 2 W directly to it.

Today I refreshed the screen and found that only the bottom half works. The very edges of the top part refreshes but the rest of the half doesnt.

I hoping someone could help.

I tried refreshing the screen multiple times but no luck. Its the exact half of the screen.

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Thank you in advance.

2

Posting the code your running may help sort it out?
Use the Preformatted Text </> option.

3 
from inky.auto import auto
from PIL import Image
import time
d = auto()
d.setup()
img = Image.new('RGB', (1600, 1200), (255, 255, 255))
d.set_image(img)
d.show()
# Result: only bottom half clears to white. Top half unchanged.

This what i used to refresh.
it still not working

4

Now the screen doesnt even respond anymore.

5

My suggestion: contact support for a replacement. This does seem like a hardware problem.

6

I did. Thank you for the advice.

8

The 13in display is internally driven by two chips. So while wiring can always be a problem, this kind of defect actually hints at something internal (i.e. one of the chips not working correctly). And in the very first post we learned that the Pi zero 2W is directly connected to the display, so a wiring problem is even less likely.

9

@RxN were you able to resolve this? I’m running into the same issue

10

Hi mate

Try this code:

source venv/bin/activate

python3 -c "

from inky.auto import auto

from PIL import Image, ImageDraw

d = auto()

d.setup()

img = Image.new(‘RGB’, (1600, 1200))

draw = ImageDraw.Draw(img)

colours = [(255,0,0),(0,200,0),(0,0,255),(255,200,0),(255,120,0),(0,0,0),(255,255,255)]

stripe_h = 1200 // len(colours)

for i, col in enumerate(colours):

draw.rectangle(\[0, i\*stripe_h, 1600, (i+1)\*stripe_h\], fill=col)

d.set_image(img)

d.show()

"

I think this is it.

If it doesn’t, let me know and it’ll dig a bit deeper.