About • Structure • Schematic • PCB • CAD • BOM • License • Credits
APX DEVBOARD is a STM32 based devboard designed with GPIO pins, buttons and an LED
- STM32G431CBT6 MCU 32-Bit 170MHz 128KB (128K x 8) FLASH 48-LQFP (7x7)
- 8 GPIO pins to help make any hardware project
- GPIO linked LED to program it without needing an external LED
- GPIO linked button to use it without needing an external button
- BOOT and RESET buttons
- USB-C input
- GND pour on both layers to reduce noise
- Amiri silkscreen for a professional look
- Original edge cut to look cool lol
- Small size of 2.3*3.7 cm
src/— KiCad and Fusion360 project sourcesproduction/— PCB and CAD fabrication files (Gerbers, BOM, Pick & Place, 3mf)3mf)images/— images used in the README and documentation
Source : src/schem
Source : src/pcb/
 |
 |
 |
 |
 |
The PCB design is made on only 2 layers, to reduce the cost of the board !
go check out the pcb on KiCanva !
go check out the case on Fusion360 !
Source : src/CAD and
production/CAD
 |
 |
The case use snap fits as there is no mounting hole in the PCB.
Source: production/pcb/bom.csv
| Designator | Footprint | Quantity | Value | LCSC Part # |
|---|---|---|---|---|
| PA2 | 0603 | 1 | LED | C2286 |
| BOOT | SW-SMD_L3.9-W3.0-P4.45 | 1 | BOOT | C455280 |
| C11, C12, C5, C6, C8 | 0603 | 5 | 1uF | C15849 |
| C1, C10, C2, C3, C4, C7 | 0603 | 6 | 100nF | C14663 |
| C9 | 0603 | 1 | 10nF | C57112 |
| DEBUG | PinHeader_1x04_P2.54mm_Vertical | 1 | Conn_01x04 | C2691448 |
| J1 | PinHeader_1x05_P2.54mm_Vertical | 1 | Header Left | C124379 |
| J2 | PinHeader_1x05_P2.54mm_Vertical | 1 | Header Right | C124379 |
| PA3 | SW-SMD_L3.9-W3.0-P4.45 | 1 | PA3 | C455280 |
| R1, R2 | 0603 | 2 | 100k | C23186 |
| R3, R4, R7 | 0603 | 3 | 10k | C25804 |
| R6, R5 | 0603 | 2 | 5.1k | C25803 |
| RESET | SW-SMD_L3.9-W3.0-P4.45 | 1 | RESET | C455280 |
| STM32 | LQFP-48_L7.0-W7.0-P0.50-LS9.0-BL | 1 | STM32G431CBT6 | C529355 |
| U1 | SOT-23-3 | 1 | XC6206PxxxMR | C5446 |
| USB-C1 | USB-C-SMD_TYPE-C-16PIN-2MD-073 | 1 | TYPE-C 16PIN 2MD | C2765186 |
 |
 |
- APX USB HUB - A PTC-secured USB HUB designed for Macondo - Hack Club
- HackPad - A 6-keys macropad designed for Blueprint - Hack Club
- See more in my github
This project is licensed under the MIT License — see the LICENSE file for details.
This project uses:
- KiCad - PCB design and schematic capture
- JLCPCB - PCB manufacturing
- LCSC - Parts order
- Figma - Silkscreen and banner design
- Fusion 360 - CAD
- @NotARoomba - Readme template
