HardLabs

MK98-Key

MondeCok·MK98-Key·pcb/MK98.kicad_pcb

MK98-Key PCB layout, top view — open source STM32 board by MondeCok

About the MK98-Key PCB

MK98-Key is an open source STM32 PCB design by MondeCok, published on GitHub. It is a 2-layer board measuring 395.3 × 121.1 mm, with 368 components from 40 distinct parts.

Its main chip is the STM32F405RGTx, from the STM32 family. Other key parts include the AP2112K-3.3, SN74LV1T125DBV, W25Q32JVSS, USBLC6-2SC6 and ADG732BSUZ-REEL. By type, the board carries 130 capacitors, 98 LEDs, 14 resistors, 9 ICs, 5 connectors and 2 transistors.

Main components on the MK98-Key

AP2112K-3.3SN74LV1T125DBVW25Q32JVSSUSBLC6-2SC6STM32F405RGTxADG732BSUZ-REEL

MK98-Key bill of materials (BOM)

368 components, 40 distinct parts.

QtyPartRefs
1
AP2112K-3.3
U1
1
SN74LV1T125DBV
U2
1
W25Q32JVSS
U3
1
USBLC6-2SC6
U4
1
STM32F405RGTx
U5
4
ADG732BSUZ-REEL
U6, U7, U8, U9
1
AO3401A
Q1
1
BSS138
Q2
1
8Mhz
Y1
1
OLED-128x32
J1
1
USB C
J2
1
Conn_01x03
J3
1
Conn_01x04
J4
1
Conn_01x05_Pin
J5
2
SKRPACE010
BOOT_BTN1, RST_BTN1
1
500mA
F1
98
49E
HE1, HE2, HE3, HE4, HE5, HE6, HE7, HE8 +90
2
MX_stab_2U
SB1, SB4
2
MX_stab_2.25U
SB2, SB5
1
MX_stab_6.25U
SB3
Show 20 more
QtyPartRefs
2
MX_stab_2U
SB6, SB7
49
SK6812
LED1, LED2, LED3, LED4, LED5, LED6, LED7, LED8 +41
49
SK6812
LED15, LED16, LED17, LED18, LED19, LED20, LED21, LED22 +41
1
120R
FB1
111
100nf
C1, C10, C11, C12, C13, C14, C18, C21 +103
3
10uF
C2, C3, C5
2
4.7uf
C4, C9
1
47uF
C6
2
47uF
C7, C8
1
10nf
C15
2
1uf
C16, C17
2
18pf
C19, C20
4
470pf
C23, C24, C25, C26
2
2.2uf
C27, C28
2
100K
R1, R2
1
1M
R3
2
5.1K
R4, R5
4
10K
R6, R7, R9, R13
4
100R
R8, R10, R11, R12
1
330
R14

MK98-Key design files

The KiCad project lives in the MondeCok/MK98-Key repository on GitHub; these links point at the commit this page was built from.

MK98-Key: common questions

What microcontroller does the MK98-Key use?

The MK98-Key is built around the STM32F405RGTx, from the STM32 family.

How big is the MK98-Key PCB?

The MK98-Key measures 395.3 × 121.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the MK98-Key?

368 components, from 40 distinct parts. The full bill of materials is listed on this page.

Where can I download the MK98-Key design files?

From the MondeCok/MK98-Key repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the MK98-Key design in my own project?

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

Can I test firmware for the MK98-Key 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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