I came across this idea here on Hacker News a while ago – a small weather display using an ESP32 and an e-ink screen to show a daily weather landscape. I loved it and shared the idea with a friend of mine. He went all in and rebuilt the whole thing in Rust – from the image rendering server to the embedded code on the ESP32.
It's a clean, minimal two-part project:
A Rust server fetches weather data from MET Norway and renders it as a landscape image.
An ESP32 downloads and displays the image on a 2.9" e-ink screen.
How does it loop, if at all? Does it just restart at the end after it falls out of `main()`?
This is definitely something I'd like to try. Gotta figure out where to run the server... maybe a good time to figure out how to do custom Home Assistant add-ons.
How long do those batteries last you? Even with the deep sleep, I imagine doing the WiFi handshake every time is going to be expensive.
_usr_bin_env•12mo ago
As far as I understand it has a deep-sleep" timer that wakes it every X minutes (mine every 30). This gives me approximately 1 Month with 4 AA rechargeable. Larger sleep intervals, other esp dev boards or larger rechargeable will increase this.
adammarples•12mo ago
People on github remain allergic to pictures, there's even a text description of each weather mode so that we can imagine it!
_usr_bin_env•12mo ago
Text output would have been too easy on the eink screen xD
_usr_bin_env•12mo ago
It's a clean, minimal two-part project:
A Rust server fetches weather data from MET Norway and renders it as a landscape image.
An ESP32 downloads and displays the image on a 2.9" e-ink screen.
Here’s the repo: https://github.com/martinohmann/weather-landscape Would love to hear what you think!
whytevuhuni•12mo ago
This is definitely something I'd like to try. Gotta figure out where to run the server... maybe a good time to figure out how to do custom Home Assistant add-ons.
How long do those batteries last you? Even with the deep sleep, I imagine doing the WiFi handshake every time is going to be expensive.
_usr_bin_env•12mo ago