HardLabs

Compact

jgillick·ThunderPack·hardware/Compact/Compact.kicad_pcb

Compact PCB layout, top view — open source STM32 board by jgillick
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About the Compact PCB

Compact is an open source STM32 PCB design by jgillick, published on GitHub under the MIT license. It is a 2-layer board measuring 40.8 × 19.6 mm, with 54 components from 27 distinct parts.

Its main chip is the STM32F411CEU6, from the STM32 family. Other key parts include the AP2210N-3.3TRG1, MCP73831T-2ACI/OT, ESD7002WTT1G and GD25Q16CEIGR. By type, the board carries 15 capacitors, 13 resistors, 9 diodes, 5 ICs, 5 connectors and 4 transistors.

It belongs with the power & battery designs in this gallery.

From the project

A self-contained microcontroller, battery, and power management system that fits in your pocket.

A kick-ass microcontroller board with everything you need in a tiny package that fits in your pocket. Integrated battery & power management system, fast ARM microcontroller, USB bootloader, 4 high-power PWM outputs, 12 GPIOs, satisfying pushbutton switch, and more.

After years of wiring together portable LED controllers that all consisted of a lithium battery, charge controller, shitty slide power switch, and an Arduino nano (or similar), I wanted something better. I always found those versions to be janky and fragile -- not to mention concerned that damaging the pouch cell battery might…

Compact, from the project README
From the project README

Main components on the Compact

STM32F411CEU6AP2210N-3.3TRG1MCP73831T-2ACI/OTESD7002WTT1GGD25Q16CEIGR

Compact bill of materials (BOM)

54 components, 27 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
STM32F411CEU6
STM32F411CE
STMicroelectronics
U1
1
AP2210N-3.3TRG1
Diodes Incorporated
U2
1
MCP73831T-2ACI/OT
MCP73831T-2ACI_OT
Microchip Technology
U3
1
ESD7002WTT1G
ON Semiconductor
U4
1
GD25Q16CEIGR
GigaDevice Semiconductor
U5
4
BSS816NWH6327XTSA1
BSS806N
Infineon Technologies
Q1, Q2, Q3, Q4
1
24MHZ
24Mhz
XRCGB24M000F0L00R0
Y1
1
440055-2
Battery
TE Connectivity
J2
1
GPIO
J3
1
10103594-0001LF
USB_B_Micro
Amphenol ICC (FCI)
J4
1
LEDs
J6
1
GPIO
J7
1
Mode
SW1
1
Power
SW2
2
SMD22WS-TP
20V2A
Micro Commercial Co
D1, D2
1
150060BS55040
LED
Würth Elektronik
D3
4
150060VS75000
LED
Würth Elektronik
D4, D5, D7, D8
1
150060SS75000
LED
Würth Elektronik
D6
1
APA102-2020
SparkFun Electronics
D9
5
100NF
100nF
C1, C3, C4, C5, C16
Show 7 more
QtyPartRefs
3
1UF
1uF
C2, C6, C13
4
4.7UF
4.7uF
C7, C9, C11, C14
2
6PF
6pF
C8, C10
1
2.2UF
2.2uF
C12
7
330
R1, R3, R7, R8, R10, R11, R12
5
20K
20k
R2, R4, R5, R9, R13
1
2k
R6

Compact design files

The KiCad project lives in the jgillick/ThunderPack repository on GitHub; these links point at the commit this page was built from.

Compact: common questions

What microcontroller does the Compact use?

The Compact is built around the STM32F411CEU6, from the STM32 family.

How big is the Compact PCB?

The Compact measures 40.8 × 19.6 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Compact?

54 components, from 27 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 Compact design files?

From the jgillick/ThunderPack repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Compact design in my own project?

Yes, under the terms of its MIT license, which jgillick chose for the repository.

Can I test firmware for the Compact 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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