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Getting started with the Waveshare 2.7" ePaper HAT on Raspberry Pi

Rane Wallin on August 30, 2019

Introduction I have been curious about the Raspberry Pi for a long time, but I only started working with one recently when it was provid...

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sergeantpol • Feb 14 '20

Hello,
I have wired 2.7inch e-Paper HAT to my Raspberry pi Zero W as it says here: waveshare.com/wiki/2.7inch_e-Paper... .
And is actually working.
I just wanted to ask if I can enable-activate the buttons without attaching it on my Rpi board but somehow wiring them with my Rpi board.
Best regards and thanks for your contribution
Kostas

Rane Wallin • Feb 14 '20

I believe what you need for that is jumper. adafruit.com/product/1951

sergeantpol • Feb 14 '20

Yeah but which pins and which holes should i connect in order to use the buttons?

Rane Wallin • Feb 14 '20

Oh, 5, 6, 13, 19. You start counting at the top left and then down and around in a U shape form

sergeantpol • Feb 17 '20 • Edited

Yeah thanks! It's working but I have actually one more question.
When I am running your program when should I press the buttons because on the terminal it appears the image below dev-to-uploads.s3.amazonaws.com/i/...

sergeantpol • Feb 17 '20

and when the running ends there is nothing I can do...
Thank you, you are already so helpful!!!

Giacomo Lanzi • Dec 21 '21

I always got this error:

Traceback (most recent call last):
  File "/home/<user>/epaper/test.py", line 4, in <module>
    import epd2in7
  File "/home/<user>/epaper/lib/epd2in7.py", line 31, in <module>
    from . import epdconfig
ImportError: attempted relative import with no known parent package

I tried to put files in lib folder, but I got the same result.
What I did wrong? Here is the file code:

 import sys
 sys.path.insert(1,"lib")

 import epd2in7

 from PIL import Image, ImageDraw, ImageFont
 epd=epd2in7.EPD()
 epd.init()
 epd.Clear(0xFF)

Using "./lib" gave me error, and I figured out that in this way is working. At least is finding the files.

DONGFENG GU • May 2 '20

Nice post, the "Accessing the buttons" section really helps a lot. I wasn't able to find an "official" document for the buttons on waveshare website. But I got redirected to here through waveshare.com/wiki/2.7inch_e-Paper.... Thank for your contribution.

powersoft • Nov 23 '19

Hello,

I have tied to get the files "epd2in7b.py and epdconfig.py" but could not find them.
Please can you help me with these so I can download it.
Thanks in advance.

Jan Kromhout
Hellevoetsluis-NL

Rane Wallin • Nov 23 '19

Hi, it looks like they moved some things around. Try the github repo: github.com/waveshare/e-Paper/tree/...

Thomas • Dec 19 '20

i like your code :) but cant figure out what display() does, can u pls upload the old epd2in7b.py and epdconfig.py? seems that waveshare removed it :(