esp32-wroom-30pin SKILL.md skillA
esp32-wroom-30pin 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-30pin@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-30pin/SKILL.md- Versions recorded
- 4
- Latest version
- git:20261030.816967f, committed Oct 30, 2026
- First version recorded
- Aug 22, 2026
- Size
- 14,542 bytes
- Repository stars
- 26
- License
- MIT
Firmware development for the 30-pin ESP32-WROOM-32 development board — the DOIT ESP32 DevKit V1 / ESP32 CH340 Type-C / NodeMCU-ESP32 30-pin form factor, 15 pins per side, CH340G or CP2102 USB-UART bridge, AMS1117 LDO, user LED on GPIO2. Use when working on a 30-pin ESP32 devkit (ESP32-D0WDQ6 / ESP32-D0WD-V3, ESP-WROOM-32 module): project setup, platformio.ini and sdkconfig for ESP-IDF or Arduino, pin mapping and which GPIOs are safe, strapping pins, ADC1 vs ADC2 with Wi-Fi, SPI speed and…
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 — 30-pin The commodity ESP32 board: `ESP-WROOM-32` module, USB-serial bridge, LDO, two buttons, 15 pins a side. It is the one that fits a breadboard with a row free, which is why it outsells the 36- and 38-pin versions. Nearly every failure on this board comes from a pin that has a second job. Read `reference/board-hardware.md` before choosing pins rather than guessing from a tutorial — a lot of ESP32 tutorials were written for a different board size. - `reference/board-hardware.md` — the board: header pin map with every pin's alternate functions, what is *not* broken out and why that helps, 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 and the SPI speed rule, power modes, memory map, deep-sleep wake pins. - `reference/esp32-family.md` — the rest of the family, for "should this be a different …
Read the whole file at its exact version.
How to install
mdr add alexex1993/mcu-skills/esp32-wroom-30pin@sha256:af25560c4112b344The 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_6l36asaathlflyy3)
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 | 14,542 B | A | view · diff |
| git:20260916.feb3db1 | 2026-09-16 | feb3db1 | 14,479 B | A | view · diff |
| git:20260901.8fa8d1d | 2026-09-01 | 8fa8d1d | 13,909 B | A | view · diff |
| git:20260822.5907e88 | 2026-08-22 | 5907e88 | 13,588 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 (14542 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_6l36asaathlflyy3 GET https://markdownregistry.com/api/v1/resolve?ref=alexex1993/mcu-skills/esp32-wroom-30pin GET https://markdownregistry.com/api/v1/blob/af25560c4112b344a0892d8c3f683ddf15b7917cc6c727c6b8d97dc69748ee88
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.