PERDICAN V1

A STM32 based devboard with an integrated IMU and 14 GPIO pins.

About • Structure • Schematic • PCB • BOM • License • Contributing • Credits

About the Project

PERDICAN is a STM32 based devboard designed with an integrated IMU, GPIO pins, buttons and LEDs

Features

• STM32G431CBT6 MCU 32-Bit 170MHz 128KB (128K x 8) FLASH 48-LQFP (7x7)
• LSM6DS3TR-C 6 axis IMU with Accelerometer, Gyroscope, Temperature
• 14 GPIO pins to help make any hardware project
• 4 debugging pins with SWCLK, SWDIO, GND and 3V3
• Status LEDs to see any error from 5V or 3V3
• 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
• pixelated silkscreen art to improve the overall look
• Small size of 3.7*3.9 cm

Repository Structure

• src/kicad/ — KiCad project sources
• src/kicad/cad/ — full 3d model
• production/ — PCB fabrication files (Gerbers, BOM, Pick & Place)
• images/ — images used in the README and documentation

Schematic on KiCad

Source : src/kicad/schem/

PCB on KiCad

Source : src/KiCad/pcb/

The PCB design is made on only 2 layers, to reduce the cost of the board !

Bill of Materials

Source: production/pcb/bom.csv

Designator	Footprint	Quantity	Value	LCSC Part #
3V3, 5V, PA3	0603	3	LED	C2286
BOOT	SW-SMD_L3.9-W3.0-P4.45	1	BOOT	C455280
C1, C11, C2, C7, C8	0603	5	1uF	C15849
C10, C13, C14, C3, C4, C5, C6, C9	0603	8	100nF	C14663
C12	0603	1	10nF	C57112
DEBUG	PinHeader_1x04_P2.54mm_Vertical	1	Conn_01x04	C2691448
IMU1	LGA-14_L3.0-W2.5-P0.50-TL	1	LSM6DS3TR-C	C967633
J1	PinHeader_1x09_P2.54mm_Vertical	1	Header Left	C18213723
J2	PinHeader_1x09_P2.54mm_Vertical	1	Header Right	C18213723
PA2	SW-SMD_L3.9-W3.0-P4.45	1	PA2	C455280
R1, R2	0603	2	5.1k	C23186
R10, R11, R3, R8, R9	0603	5	10k	C25804
R4, R5	0603	2	100k	C25803
R6, R7	0603	2	4.7k	C23162
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

JLPCB order

LCSC parts

The PCB is expensive due to small vias. This will be arranged with bigger vias for the V2. BTW, I am not ordering it, I will do so for the V2.

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Contributing

Contributions, improvements, and remixes are welcome! Please read the CONTRIBUTING.md guide to get started.

License

This project is licensed under the MIT License — see the LICENSE file for details.

Credits

This project uses:

• KiCad - PCB design and schematic capture
• JLCPCB - PCB manufacturing
• LCSC - Parts order
• Figma - Silkscreen and banner design
• Fusion 360 - CAD render
• @NotARoomba - Readme template