# thelastoutpostworkshop/gpio_viewer

GPIOViewer Arduino Library to see live GPIO Pins on ESP32 boards

Repository: https://github.com/thelastoutpostworkshop/gpio_viewer
Canonical: https://ross.abutalabs.com/products/gpio_viewer
Homepage: https://youtu.be/JJzRXcQrl3I
Language: C++
License: MIT
License Family: permissive
Topics: arduino-library, esp32, gpio, gpio-pins, gpioviewer
Last push: 2026-08-16T15:44:38+00:00

## Health v2 (maintenance only)
Score: 80/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 98, release rhythm 61, longevity 71
- inputs: {"age_days": 1000, "days_push": 17, "days_rel": 263, "gap_med": 23.0, "n_releases_24m": 9}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1589, forks 177 (observed 2026-08-28T04:05:07.945881+00:00)

## What it is
An Arduino library for ESP32 boards that serves a live web-based view of GPIO pin states for troubleshooting microcontroller projects. It integrates into sketches with a single begin() call and uses ESPAsyncWebServer to display pin activity in a browser.

## Use cases
- debug esp32 gpio pins live in a browser
- see which arduino pins are on or off while my sketch runs
- troubleshoot esp32 project wiring and pin states
- monitor gpio pin states over wifi on esp32
- visualize pin activity without a logic analyzer

## When to choose
- you develop ESP32 projects with Arduino IDE or PlatformIO and need live GPIO visibility
- you want a zero-hardware debugging aid for pin states over WiFi

## When to avoid
- you use non-ESP32 boards or non-Arduino frameworks
- you need offline debugging without a WiFi network
- you need deep debugging like breakpoints or memory inspection

## Facets
- artifact type: library
- maturity: active
- function: monitoring, http-server, developer-tools, gui
- domain: embedded-systems, iot, developer-tools, hardware
- platform: embedded, iot, cpp
- tags: arduino, esp32, gpio, debugging, microcontroller, arduino-library, live-pin-monitoring, web-server

## Member repositories
- thelastoutpostworkshop/gpio_viewer (main) score 80

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:07.945881+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 2026-08-30T03:54:58.731910+00:00, confidence not recorded.
  - readme: https://github.com/thelastoutpostworkshop/gpio_viewer (fetched 2026-08-28T04:05:07.945881+00:00, sha c1fa2e09b005)
  - homepage: https://youtu.be/JJzRXcQrl3I (fetched 2026-08-29T11:25:34.046909+00:00, sha a5443702cff4)
- Data as of 2026-08-30T08:39:29.467469+00:00.