HardLabs

Smart-Meter

hupfer21·Smart-Meter·PCB/PCB.kicad_pcb

Smart-Meter PCB layout, top view — open source ESP32 board by hupfer21

About the Smart-Meter PCB

Smart-Meter is an open source ESP32 PCB design by hupfer21, published on GitHub. It is a 2-layer board measuring 78 × 90 mm, with 129 components from 35 distinct parts.

Its main chip is the ESP32-S3, from the ESP32 family. Other key parts include the PC817, ADuM1411, ATM90E36A-AU-R, HLK-5M05 and B0303S-1WR3. By type, the board carries 61 resistors, 38 capacitors, 10 ICs, 9 connectors, 8 diodes and 1 crystal.

From the project

Three-Phase Smart Meter

This project is a three-phase smart meter based on the ATM90E36 energy metering IC.

Smart-Meter, from the project README
From the project README

Main components on the Smart-Meter

ESP32-S3PC817ADuM1411ATM90E36A-AU-RHLK-5M05B0303S-1WR3BQ24073RGTTLV75733PDRVTPS22918DBV

Smart-Meter bill of materials (BOM)

129 components, 35 distinct parts.

QtyPartRefs
1
ESP32-S3
U1
2
PC817
U2, U3
1
ADuM1411
U4
1
ATM90E36A-AU-R
U5
1
HLK-5M05
U6
1
B0303S-1WR3
U7
1
BQ24073RGT
U8
1
TLV75733PDRV
U9
1
TPS22918DBV
U10
1
ABM8W-16.3840MHZ-4-B1U-T3
Y1
4
Conn_01x02
J1, J2, J5, J6
1
Conn_01x04
J3
1
Conn_01x06
J4
1
Screw_Terminal_01x04
J7
1
Screw_Terminal_01x08
J8
1
Conn_01x03
J10
1
T/200mA/250VAC
F1
1
14D471K
MOV1
1
LED_L1
D1
1
LED_L2
D2
Show 15 more
QtyPartRefs
2
LED_L3
D3, D4
4
LED
D5, D6, D7, D8
13
100n/16V
C1, C3, C4, C5, C20, C21, C22, C24 +5
9
10u/16V
C2, C23, C25, C26, C29, C30, C35, C36 +1
12
18n/10Q
C6, C7, C8, C9, C10, C11, C12, C13 +4
4
1u/16V
C31, C32, C34, C38
10
1k
R1, R2, R3, R6, R7, R8, R59, R61 +2
8
10k
R9, R10, R57, R58, R67, R68, R69, R71
6
2R4/1Q
R11, R12, R27, R28, R46, R47
21
240k/1Q
R13, R14, R15, R18, R19, R20, R21, R22 +13
12
1k/1Q
R16, R17, R29, R30, R40, R41, R42, R43 +4
1
91R/1Q
R60
1
56k/1Q
R62
1
1k58/1Q
R63
1
1k8/1Q
R64

Smart-Meter design files

The KiCad project lives in the hupfer21/Smart-Meter repository on GitHub; these links point at the commit this page was built from.

Smart-Meter: common questions

What microcontroller does the Smart-Meter use?

The Smart-Meter is built around the ESP32-S3, from the ESP32 family.

How big is the Smart-Meter PCB?

The Smart-Meter measures 78 × 90 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Smart-Meter?

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

Where can I download the Smart-Meter design files?

From the hupfer21/Smart-Meter repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Smart-Meter design in my own project?

The repository has no license, so all rights stay with hupfer21. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Smart-Meter without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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