# lmarzen/esp32-weather-epd

A low-power E-Paper weather display powered by an ESP32 microcontroller. Utilizes the OpenWeatherMap API.

Repository: https://github.com/lmarzen/esp32-weather-epd
Canonical: https://ross.abutalabs.com/products/esp32-weather-epd
Language: C
License: GPL-3.0
License Family: copyleft
Topics: display, eink, embedded, epaper, esp32, weather
Last push: 2026-07-22T21:44:48+00:00

## Health v2 (maintenance only)
Score: 74/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 93, release rhythm 35, longevity 100
- inputs: {"age_days": 1639, "days_push": 42, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 6242, forks 471 (observed 2026-08-28T04:09:40.901843+00:00)

## What it is
A low-power weather display firmware for an ESP32 microcontroller driving a 7.5-inch E-Paper panel, fetching data from the OpenWeatherMap API with onboard indoor temperature and humidity sensing. It runs for 6-12 months on a 5000mAh battery with 30-minute updates and supports extensive customization of languages, units, and layouts.

## Use cases
- build a low-power e-paper weather station
- display indoor and outdoor weather on an eink screen
- esp32 project that runs months on a battery
- customizable weather dashboard with OpenWeatherMap data
- diy e-paper display firmware for ESP32

## When to choose
- you want a battery-powered eink weather display with months of runtime
- you have an ESP32 and a supported 7.5" e-paper panel
- you need customizable units, languages, and AQI scales

## When to avoid
- you need a real-time continuously refreshing display
- you don't want to solder, wire, and flash firmware yourself
- you don't have an OpenWeatherMap API key or compatible hardware

## Facets
- artifact type: application
- maturity: active
- function: iot, embedded, data-visualization
- domain: weather, iot, embedded-systems, hardware
- platform: embedded, iot
- tags: e-paper, eink, esp32, openweathermap, low-power, weather-display, diy-electronics, c

## Member repositories
- lmarzen/esp32-weather-epd (main) score 74

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:40.901843+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:47:10.742036+00:00, confidence not recorded.
  - readme: https://github.com/lmarzen/esp32-weather-epd (fetched 2026-08-28T04:09:40.901843+00:00, sha bd8b178a359d)
- Data as of 2026-08-30T08:39:29.467469+00:00.