Olimex STM32-H405

The board as it appears on the Velxio canvas, with its full pin map read live from the simulator (regenerated by scripts/gen-boards.mjs, so it always matches what you can wire).

Family: STM32 · Languages: Arduino C++

About this board

Olimex’s STM32F405RG header board: Cortex-M4 with FPU, in an industrial-style layout rather than the hobby pill footprint.

Same STM32duino core and the same Arduino API surface as the rest of the family — the board is here so that projects designed around Olimex hardware can be prototyped against the pinout they will actually ship on.

Start here

New Olimex STM32-H405 project opens the editor with this board and a working blink sketch. STM32 boards need a paid plan — see plans.

Pins (24)

• 3V3
• GND
• PA0
• PA1
• PA2
• PA3
• PB6
• PB7
• PB8
• PB9
• PC0
• PC1
• 5V
• GND
• PC12
• PC10
• PC11
• PA4
• PA5
• PA6
• PA7
• PB0
• PB1
• PB10

Every pin above is clickable on the canvas — click one to start a wire. Board-level behavior, quirks and example links live on the family page.