f32: Ultra-Compact ESP32 Development Board for USB-C Mounting
By
pegor
Master baker tier. Every paragraph earns its place on the tray.
Summary
The f32 is an ultra-compact ESP32 development board designed to mount directly behind a USB-C receptacle, measuring just 9.85 mm x 8.45 mm. It uses the ESP32-C3FH4 microcontroller and was created primarily for research and as a stress test for ESP32 design, intentionally ignoring many standard guidelines. The board has only one exposed GPIO connected to an onboard LED, making it suitable for wifi/web development. An example application was created for testing that allows user interaction.
Key quotes
· 4 pulledThe f32 is an ultra-compact ESP32 development board designed to mount directly behind a USB-C receptacle.
The PCB measures just 9.85 mm x 8.45 mm.
It's powered by the ESP32-C3FH4 microcontroller and was created primarily for research and as a bit of a stress test for the ESP32, since it intentionally ignores many standard design guidelines.
There's only one exposed GPIO and it is connected to an onboard LED, so most of the development on here would be more catered for wifi/web.
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