esp32-wroom-38pin SKILL.md skillA
esp32-wroom-38pin from alexex1993/mcu-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add alexex1993/mcu-skills/esp32-wroom-38pin@git:20261030.816967fPins git:20261030.816967f in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- alexex1993/mcu-skills
- Path
skills/esp32/esp32-wroom-38pin/SKILL.md- Versions recorded
- 4
- Latest version
- git:20261030.816967f, committed Oct 30, 2026
- First version recorded
- Aug 22, 2026
- Size
- 16,296 bytes
- Repository stars
- 26
- License
- MIT
Firmware development for the 38-pin ESP32-WROOM-32 development board — Espressif ESP32-DevKitC V4, Ai-Thinker NodeMCU-32S, DOIT ESP32 DevKit V1 38-pin and their CH340/CP2102 clones, 19 pins per side, with GPIO0 and the six in-package flash pins (GPIO6-11, labelled D0 D1 D2 D3 CMD CLK or SD0-SD3) broken out. Use when working on a 38-pin ESP32 devkit (ESP32-D0WDQ6 / ESP32-D0WD-V3, ESP-WROOM-32 or ESP32-WROVER module): project setup, platformio.ini and sdkconfig for ESP-IDF or Arduino, pin…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# ESP32-WROOM-32 devkit — 38-pin The reference form factor: Espressif's **ESP32-DevKitC V4** and the clones that copy its J2/J3 header pin for pin. Nineteen pins a side, and every pad of the module is broken out — including six that will hang the chip and one that will stop it booting. That completeness is the whole story of this board. The 30-pin version protects you by omission; this one hands you the flash bus and GPIO0 and expects you to know better. Read `reference/board-hardware.md` before choosing pins. - `reference/board-hardware.md` — the board: the Espressif J2/J3 header table with every pin's alternate functions, the six flash pins, the IO0 hazard, the `D2`-means-GPIO9 silkscreen trap, the WROVER GPIO16/17 difference, the USB bridge and auto-reset circuit, power tree, flash partitions — **plus** a development guide (§10 toolchain, §11 sdkconfig, §12 flashing and recovery, §13 peripheral cookbook, §14 symptom → cause → fix table). - `reference/esp32-soc.md` — the silicon: pins that do not exist, strapping semantics and the `GPIO_STRAP_REG` bit order, ADC/DAC/touch maps and accuracy, IO_MUX vs GPIO Matrix …
Read the whole file at its exact version.
How to install
mdr add alexex1993/mcu-skills/esp32-wroom-38pin@sha256:e881f1741c0a467fThe line at the top of this page pins the label git:20261030.816967f, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_l3jye56vb4kskvuf)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Aug 22, 2026 and Oct 30, 2026, about one every 23 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261030.816967f latest | 2026-10-30 | 816967f | 16,296 B | A | view · diff |
| git:20260916.feb3db1 | 2026-09-16 | feb3db1 | 16,233 B | A | view · diff |
| git:20260901.8fa8d1d | 2026-09-01 | 8fa8d1d | 15,609 B | A | view · diff |
| git:20260822.5907e88 | 2026-08-22 | 5907e88 | 15,288 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (16296 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
alexex1993/mcu-skills · 26 stars · license MIT · pushed 2026-10-30 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_l3jye56vb4kskvuf GET https://markdownregistry.com/api/v1/resolve?ref=alexex1993/mcu-skills/esp32-wroom-38pin GET https://markdownregistry.com/api/v1/blob/e881f1741c0a467fcf1c23484d73fa75f36a406090bd6d11289356753989ad14
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.