HardLabs

3Phase

eauel·openzmeter·Hardware/DeviceV2/PCB/3Phase.kicad_pcb

3Phase PCB layout, top view — open source STM32 board by eauel

About the 3Phase PCB

3Phase is an open source STM32 PCB design by eauel, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 46.4 × 80 mm, with 148 components from 51 distinct parts.

Its main chip is the STM32F042, from the STM32 family. Other key parts include the MCP6004, ME6216A33M3G, VIPER22ADIP-E, PS7516 and SRV05-4. By type, the board carries 64 resistors, 37 capacitors, 13 ICs, 13 diodes, 8 connectors and 4 inductors.

Main components on the 3Phase

MCP6004ME6216A33M3GVIPER22ADIP-EPS7516SRV05-474HC4066SY8201ABCTP4054ST25PSTM32F042

3Phase bill of materials (BOM)

148 components, 51 distinct parts.

QtyPartRefs
3
MCP6004
U1, U3, U11
3
ME6216A33M3G
U2, U4, U5
1
VIPER22ADIP-E
U6
1
PS7516
U7
1
SRV05-4
U8
1
74HC4066
U9
1
SY8201ABC
U10
1
TP4054ST25P
U12
1
STM32F042
U13
1
AP2301
Q1
2
2N7002
Q2, Q3
4
95001-6P6C
J1, J2, J3, J4
1
2.54x3 pin header
J5
1
JST 2mm-2P
J6
1
3.81x4 terminal block
P1
1
2 x 2.54x2 pin header
P2
1
JST 2mm-2P
BT1
1
QMB-09B-05
BZ1
1
2.54x3 pin header
JP1
1
05D391K
RV1
Show 31 more
QtyPartRefs
1
SW_Push
SW2
1
NTC 10D5
TH1
2
ES1J
D1, D3
1
BZT52C18S
D2
3
1N4007G
D4, D5, D6
1
SS14
D8
3
3mm bicolor LED
D9, D10, D12
1
3mm blue LED
D11
2
1N5819WS
D13, D14
1
470uH 350mA
L1
1
1mH 300mA
L2
2
10uH
L3, L4
29
100nF 25v
C1, C2, C3, C4, C5, C6, C7, C10 +21
2
4.7uF 450v (10x12mm)
C8, C9
1
4.7uF 25v
C11
1
47uF 35v
C12
4
100uF 16v
C15, C18, C31, C32
8
1k02
R1, R2, R6, R9, R11, R13, R19, R20
7
100h
R3, R7, R8, R14, R62, R63, R64
8
1k69
R4, R5, R10, R12, R15, R16, R17, R22
9
200k
R18, R21, R24, R25, R26, R27, R28, R29 +1
6
4k7
R23, R35, R39, R40, R51, R52
3
2.2k
R31, R32, R34
1
36k5
R33
4
100k
R36, R37, R44, R56
1
39h
R38
10
270k
R41, R42, R45, R46, R47, R48, R49, R57 +2
4
1k43
R43, R53, R54, R58
1
51k
R50
1
220h
R55
1
150k
R59

3Phase design files

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

3Phase: common questions

What microcontroller does the 3Phase use?

The 3Phase is built around the STM32F042, from the STM32 family.

How big is the 3Phase PCB?

The 3Phase measures 46.4 × 80 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the 3Phase?

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

Where can I download the 3Phase design files?

From the eauel/openzmeter repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the 3Phase design in my own project?

Yes, under the terms of its GPL-3.0 license, which eauel chose for the repository.

Can I test firmware for the 3Phase 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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