Domoticz

hi all,
I always wanted to have some nice e-ink with low power consumption and no emited light with domoticz info. So here is my progress so far.
Im using raspberry zero with Waveshare e-ink display and python code. It works quite good so far, only refresh rate is really slow (maybe is because slow SPI on Rasp zero). So dunno if i try to switch to some microcontroler like esp32 or arduino for better SPI data transfer.

How it works so far
- On my domoticz server is running cron with python script that send BMP data over ssh to raspberry connected with e-ink with some refresh&display command.
- Script is written in python - JSON data are recieved from domoticz. Then parse data, use html template with hardcoded size and all is converter from html to BMP (weasyprint module). I know that its quite ugly, but best for templating, imho
- Plan is to hide rasp inside wall and make some border for e-ink later



Script is unfinished and quite ugly and hardcoded (im still python beginner)
Also e-ink should support red color, so i have to check how
If is someone interested i can post script later...

Nice! Please keep us posted.

Seagate wrote: ↑Monday 25 February 2019 10:42 Nice! Please keep us posted.

Thanks
so some updates...
-rewrited forecast with nice icons and better predictions
-added google calendar import as separate python module (works for days, multiple calendars, with names and stylings)
-prepared laser case - combined two pieces together to make thin border around display (cutted on acrylic on laser)
-added support for 2 colors - red and black in my case (image is exported as green and red and separated with PIL module to two bitmap images)
-prepared wiring opening on wall (raspberry power supply will be hidden on another side of wall so no visible cables)
-little optimized e-ink code for faster refresh (still quite slow)

Nice!

hello, if anyone is still ingterested, im still working on this project
rewrited most of my python code, and used new https://www.waveshare.com/wiki/9.7inch_e-Paper_HAT bigger display with much better refresh rate (no ugly and slow refresh) so i can even add minutes (now i have two minutes refresh). Python script now work standalone as service. Im using html with css for styling and then convert to BMP for eink...
if anyone is interested a can provide code later

Nice work!!!

Looks great! Congratulation!

Looks great! Would you mind sharing the code? I just puchased the 7.5 inch version of the waveshare e-ink screen for the same purpose . I wanted to use this project, but yours seems a bit simpler with less overhead.

https://github.com/BenRoe/rpi-magicmirror-eink

Hi Devros.

I'm very interested for this project as well.
Do you thing you could share it with us please ?

Thank you.

Hi Devros, very interesting project, it is good solution to reduce power consumption of other solutions using LCD pannels.

Could you please share the code.