HardLabs

Mercury v2

Teruru-52·Mercury-pcb·v2.0/Mercury-v2-pcb.kicad_pcb

Mercury v2 PCB layout, top view — open source STM32 board by Teruru-52

About the Mercury v2 PCB

Mercury v2 is an open source STM32 PCB design by Teruru-52, published on GitHub. It is a 2-layer board measuring 72.8 × 100 mm, with 147 components from 51 distinct parts.

Its main chip is the STM32F405RGTx, from the STM32 family. Other key parts include the AD8602, DRV8835, ACS722xLCTR-05AB, ICM-20602 and LT1963AES3-3.3. By type, the board carries 48 resistors, 42 capacitors, 24 diodes, 14 ICs, 8 connectors and 5 transistors.

It belongs with the robotics & motion designs in this gallery.

Main components on the Mercury v2

STM32F405RGTxAD8602DRV8835ACS722xLCTR-05ABICM-20602LT1963AES3-3.3LXDC55FAAA-203DRV8838

Mercury v2 bill of materials (BOM)

147 components, 51 distinct parts.

QtyPartRefs
1
STM32F405RGTx
U1
3
AD8602
U2, U9, U10
2
DRV8835
U3, U11
2
ACS722xLCTR-05AB
U4, U12
1
ICM-20602
U5
2
~
U6, U13
1
LT1963AES3-3.3
U7
1
LXDC55FAAA-203
U8
1
DRV8838
U14
1
BSS138
Q1
3
IRFML8244
Q2, Q3, Q5
1
IRLML6402
Q4
1
XRCGB16M000FXN02R0
Y1
1
Micro_SD_Card_Det2
J1
1
UART
J2
1
Conn_ARM_JTAG_SWD_10
J3
2
2.54mm 02x03
J4, J7
2
BATTERY
J5, J6
1
Conn_01x02
J8
1
SMT-0440
SP1
Show 31 more
QtyPartRefs
2
Switch
SW1, SW2
1
SW_DPDT_x2
SW3
11
LED
D1, D2, D3, D4, D5, D6, D7, D8 +3
6
SFH213FA
D12, D13, D19, D20, D21, D22
6
VSLY5850
D14, D15, D16, D17, D23, D24
1
POWER
D18
1
10u
L1
3
2.2u
C1, C6, C22
16
0.1u
C2, C3, C5, C7, C8, C10, C11, C12 +8
2
10p
C4, C9
7
0.01u
C13, C15, C20, C31, C33, C35, C37
6
22p
C14, C16, C32, C34, C36, C38
1
100uF
C23
2
10u
C24, C26
2
0.1u
C25, C27
1
20u
C28
1
10u
C29
1
0.1u
C41
9
10k
R1, R4, R5, R12, R15, R18, R24, R27 +1
1
1k
R2
1
120
R3
12
1k
R6, R7, R8, R9, R10, R11, R13, R14 +4
7
100k
R20, R22, R30, R38, R40, R42, R44
6
220k
R21, R23, R39, R41, R43, R45
3
10
R25, R28, R47
3
33 1% 1/2W
R26, R29, R48
1
20k
R31
1
10k
R32
1
133
R34
1
5
R35
2
1k
R36, R37

Mercury v2 design files

The KiCad project lives in the Teruru-52/Mercury-pcb repository on GitHub; these links point at the commit this page was built from.

Mercury v2: common questions

What microcontroller does the Mercury v2 use?

The Mercury v2 is built around the STM32F405RGTx, from the STM32 family.

How big is the Mercury v2 PCB?

The Mercury v2 measures 72.8 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Mercury v2?

147 components, from 51 distinct parts. The full bill of materials is listed on this page.

Where can I download the Mercury v2 design files?

From the Teruru-52/Mercury-pcb repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Mercury v2 design in my own project?

The repository has no license, so all rights stay with Teruru-52. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Mercury v2 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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