Individual skill

stm32f411-blackpill

Firmware development for the WeAct Studio "Black Pill" (STM32F411CEU6) and its clones such as the DFRobot DFR0864 — the 25 MHz HSE and 32.768 kHz LSE crystals, PC13 LED, K1 button, USB-C wired straight to USB_OTG_FS, ROM DFU flashing, the SPI-flash footprint, and the STM32Cube HAL + PlatformIO setup around them. Use when working on this board or any STM32F411CE/F401CC Black Pill: project setup, platformio.ini, clock and PLL configuration for 96 MHz plus 48 MHz USB, pin mapping on the 48-pin package, USB CDC console, RTC on the LSE crystal, the internal temperature sensor, ADC accuracy, DFU flashing and recovery, or debugging why something on the board does not work.

skills/stm32/stm32f411-blackpill/SKILL.md

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Source commit 816967f30a7dbdf4759ad585b822eda3575f720c

What was checked

Matches the observed repository HEAD: Yes
Scanner rules are current: Yes
Repository scan complete: No
Skill scan complete: Yes
Observed behavior: Network or broad shell
Last checked: Nov 11, 2026

These are observations at the recorded commit, not a guarantee of safety. Review the source before running it.

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Repository context

Repository stars (not skill ratings): 27
Repository last updated: Oct 30, 2026
License: MIT

Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.

agentic-ai Repository topic
arduino Repository topic
claude-code Repository topic
esp32 Repository topic
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testing Derived category

Files and excerpt

File metadata and permitted, redacted excerpts come from the recorded scan. Source links are pinned to that commit.

Browse files

SKILL.mdcore · 9,319 bytes
assets/IMAGE.mddoc · 453 bytes
reference/board-hardware.mddoc · 35,975 bytes
reference/recipes.mddoc · 39,962 bytes
template/.gitignoreasset · 94 bytes
template/README.mddoc · 4,807 bytes
template/include/READMEasset · 1,264 bytes
template/include/board.hasset · 1,467 bytes
template/include/temp_sensor.hasset · 501 bytes
template/include/usb_device.hasset · 244 bytes
template/include/usbd_cdc_if.hasset · 382 bytes
template/include/usbd_conf.hasset · 1,061 bytes
template/include/usbd_desc.hasset · 137 bytes
template/lib/READMEasset · 1,054 bytes
template/lib/USBDevice/usbd_cdc.casset · 29,010 bytes
template/lib/USBDevice/usbd_cdc.hasset · 5,406 bytes
template/lib/USBDevice/usbd_core.casset · 30,773 bytes
template/lib/USBDevice/usbd_core.hasset · 5,816 bytes
template/lib/USBDevice/usbd_ctlreq.casset · 26,053 bytes
template/lib/USBDevice/usbd_ctlreq.hasset · 2,106 bytes
template/lib/USBDevice/usbd_def.hasset · 16,832 bytes
template/lib/USBDevice/usbd_ioreq.casset · 5,017 bytes
template/lib/USBDevice/usbd_ioreq.hasset · 2,422 bytes
template/platformio.iniasset · 1,583 bytes
template/src/main.casset · 12,113 bytes
template/src/temp_sensor.casset · 4,468 bytes
template/src/usb_device.casset · 583 bytes
template/src/usbd_cdc_if.casset · 3,397 bytes
template/src/usbd_conf.casset · 7,955 bytes
template/src/usbd_desc.casset · 5,083 bytes
template/variants/minimal/main.casset · 3,362 bytes
template/variants/new-project.shruns · 1,568 bytes

Read excerpt


# WeAct "Black Pill" — STM32F411CEU6

Board-specific firmware knowledge. The two reference files hold the detail — read the one you need
rather than guessing, because most of the failure modes below are silent (the board runs, just
wrongly).

- `reference/board-hardware.md` — complete hardware reference: pin map for the 48-pin package with
  every alternate function, power tree, memory map, boot modes, **plus** a full development guide
  (Part II: §12 PlatformIO, §13 bring-up order, §14 peripheral cookbook, §15 F4/M4 gotchas,
  §16 flashing and recovery, §17 pitfall table).
- `reference/recipes.md` — copy-paste-ready code: `platformio.ini`, `board.h`, the clock tree, RTC on
  the LSE crystal, the calibrated temperature sensor, the complete USB CDC stack.
- `template/` — a **complete working project** that builds and flashes, plus a scaffolding script.
  It is where every recipe was extracted from; see `template/README.md`.