esp32s3-cam-40pin SKILL.md skillA
esp32s3-cam-40pin 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/esp32s3-cam-40pin@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/esp32s3-cam-40pin/SKILL.md- Versions recorded
- 3
- Latest version
- git:20261030.816967f, committed Oct 30, 2026
- First version recorded
- Aug 30, 2026
- Size
- 21,328 bytes
- Repository stars
- 26
- License
- MIT
Firmware development for the 40-pin ESP32-S3-WROOM-1 camera board — the Freenove ESP32-S3-WROOM (FNK0085) and the AliExpress "ESP32-S3 CAM" / "ESP32-S3-WROOM N16R8 CAM" clones that copy its header: 20 pins a side, a 24-pin DVP camera FPC connector for an OV2640/OV3660, an on-board microSD slot on the SDMMC bus, a WS2812, two USB-C sockets (CH343 bridge and native USB), ESP32-S3-WROOM-1-N8R8 or N16R8 with 8 MB octal PSRAM. Use when working on this board or any ESP32-S3 DVP camera board: project…
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-S3-WROOM CAM — 40-pin Twenty pins a side, a DVP camera connector on the front, a microSD slot on the back, and two USB-C sockets. The camera claims **fourteen** of the thirty-six GPIO pads, the card claims three more, and the octal PSRAM claims three that are printed on the header and look free. What is left is seven pins. That arithmetic is the whole story of this board. It also means the Arduino defaults for `Wire` and `SPI` land squarely on camera data lines, and that the single most common failure — "the camera does not initialise" — is almost never the camera. - `reference/board-hardware.md` — the board: the full 40-pin header table with every alternate function, the camera and SDMMC maps traced to the vendor's own code, the PSRAM and strapping pins, the two USB routes, the power tree, the flash/partition layout — **plus** a development guide (§8 toolchain, §9 platformio.ini, §10 flashing and recovery, §11 symptom → cause → fix table). - `reference/esp32s3-soc.md` — the silicon: which GPIOs do not exist, strapping semantics from the datasheet's own tables, ADC1/ADC2 and touch maps, the LCD_CAM DVP controller, …
Read the whole file at its exact version.
How to install
mdr add alexex1993/mcu-skills/esp32s3-cam-40pin@sha256:81b6fa50a1a17d3eThe 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_i7njpqvukus2uz4s)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Aug 30, 2026 and Oct 30, 2026, about one every 31 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261030.816967f latest | 2026-10-30 | 816967f | 21,328 B | A | view · diff |
| git:20260901.8fa8d1d | 2026-09-01 | 8fa8d1d | 21,261 B | A | view · diff |
| git:20260830.10186cd | 2026-08-30 | 10186cd | 20,940 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 (21328 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_i7njpqvukus2uz4s GET https://markdownregistry.com/api/v1/resolve?ref=alexex1993/mcu-skills/esp32s3-cam-40pin GET https://markdownregistry.com/api/v1/blob/81b6fa50a1a17d3ee9ba2a16811a6137f39967ced53eb4a0e93c75f1442510d3
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.