Bugboard mini

NeerajR18·bugboard-mini·PCB/bugboard-mini.kicad_pcb

Bugboard mini PCB layout, top view — open source STM32 board by NeerajR18

About the Bugboard mini PCB

Bugboard mini is an open source STM32 PCB design by NeerajR18, published on GitHub. It is a 2-layer board measuring 20 × 25 mm, with 20 components from 11 distinct parts.

Its main chip is the STM32G431KBTx, from the STM32 family. Other key parts include the XC6206PxxxMR. By type, the board carries 8 capacitors, 3 connectors, 3 resistors, 2 ICs, 2 switches and 1 fuse.

It belongs with the dev boards & breakouts designs in this gallery.

From the project

Small Size development board based on the STM32G431KBT6

Bugboard mini, from the project README — From the project README

Main components on the Bugboard mini

STM32G431KBTx XC6206PxxxMR

Bugboard mini bill of materials (BOM)

20 components, 11 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	STM32G431KBTx	LQFP-32_7x7mm_P0.8mm	U1
1	XC6206PxxxMR	SOT-23-3	U2
1	USB_C_Receptacle_USB2.0_14P	USB_C_Receptacle_HRO_TYPE-C-31-M-12	J1
2	Conn_01x08_Pin	PinHeader_1x08_P2.54mm_Vertical	J2, J3
1	500mA	Fuse_0603_1608Metric	F1
2	SW_SPST	SW_SPST_TS-1088-xR020	SW1, SW2
1	PRTR5V0U2X	SOT-143	D1
3	10uF	C_0402_1005Metric	C1, C2, C7
5	100nF	C_0402_1005Metric	C3, C4, C5, C6, C8
2	5k1	C_0402_1005Metric	R1, R2
1	10k	C_0402_1005Metric	R3

Bugboard mini design files

The KiCad project lives in the NeerajR18/bugboard-mini repository on GitHub; these links point at the commit this page was built from.

Bugboard mini: common questions

What microcontroller does the Bugboard mini use?

The Bugboard mini is built around the STM32G431KBTx, from the STM32 family.

How big is the Bugboard mini PCB?

The Bugboard mini measures 20 × 25 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Bugboard mini?

20 components, from 11 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Bugboard mini design files?

From the NeerajR18/bugboard-mini repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Bugboard mini design in my own project?

The repository has no license, so all rights stay with NeerajR18. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Bugboard mini without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

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