HardLabs

G431rapidtrigger

Cacaomeme·g431rapidtrigger·rapidtrigger_keyboard/rapidtrigger_keyboard.kicad_pcb

G431rapidtrigger PCB layout, top view — open source STM32 board by Cacaomeme

About the G431rapidtrigger PCB

G431rapidtrigger is an open source STM32 PCB design by Cacaomeme, published on GitHub. It is a 2-layer board measuring 100 × 100 mm, with 90 components from 35 distinct parts.

Its main chip is the STM32G431K8Tx, from the STM32 family. Other key parts include the NUMLOCK, 7, 4, 1 and 0. By type, the board carries 38 ICs, 23 resistors, 19 diodes, 6 capacitors, 2 connectors and 1 transistor.

It belongs with the keyboards designs in this gallery.

Main components on the G431rapidtrigger

NUMLOCK7410/852*963.-+EnterAH49FNTR-G1LM1117GS-3.3STM32G431K8TxCD74HC4067SM

G431rapidtrigger bill of materials (BOM)

90 components, 35 distinct parts.

QtyPartRefs
1
NUMLOCK
U1
1
7
U2
1
4
U3
1
1
U4
1
0
U5
1
/
U6
1
8
U7
1
5
U8
1
2
U9
1
*
U10
1
9
U11
1
6
U12
1
3
U13
1
.
U14
1
-
U15
1
+
U16
1
Enter
U17
17
AH49FNTR-G1
U18, U19, U20, U21, U22, U24, U25, U26 +9
1
LM1117GS-3.3
U23
1
STM32G431K8Tx
U33
Show 15 more
QtyPartRefs
2
CD74HC4067SM
U37, U38
1
BSS138
Q1
1
USB_C_Receptacle_USB2.0
J1
1
Conn_02x06_Odd_Even
J2
1
SW_Push
SW1
2
1N4148
D1, D7
17
LED
D2, D3, D4, D5, D6, D8, D9, D10 +9
3
0.1u
C1, C2, C3
1
0.01u
C4
1
0.47u
C5
1
25v22u
C6
2
5.1k
R1, R2
1
1.5k
R3
17
1.2k
R4, R5, R6, R7, R8, R9, R10, R11 +9
3
10k
R13, R14, R23

G431rapidtrigger design files

The KiCad project lives in the Cacaomeme/g431rapidtrigger repository on GitHub; these links point at the commit this page was built from.

G431rapidtrigger: common questions

What microcontroller does the G431rapidtrigger use?

The G431rapidtrigger is built around the STM32G431K8Tx, from the STM32 family.

How big is the G431rapidtrigger PCB?

The G431rapidtrigger measures 100 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the G431rapidtrigger?

90 components, from 35 distinct parts. The full bill of materials is listed on this page.

Where can I download the G431rapidtrigger design files?

From the Cacaomeme/g431rapidtrigger repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the G431rapidtrigger design in my own project?

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

Can I test firmware for the G431rapidtrigger 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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