HardLabs

Powermeter

hpvdt·typhoon_electronics·power/hardware/powermeter/powermeter.kicad_pcb

Powermeter PCB layout, top view — open source ESP32 board by hpvdt

About the Powermeter PCB

Powermeter is an open source ESP32 PCB design by hpvdt, published on GitHub. It is a 2-layer board measuring 34.6 × 35.6 mm, with 20 components from 15 distinct parts.

Its main chip is the ESP32-S3-WROOM-1, from the ESP32 family. Other key parts include the AZ1117-3.3. By type, the board carries 9 capacitors, 4 connectors, 3 ICs and 2 resistors.

From the project

Folder for each of the boards designed for a given project, even if there is only one board for a given project. Once a board is put into manufacture any revisions should go into a new folder/project so that the design data for all boards is easily accessible for troubleshooting

Folder for each of the boards designed for a given project, even if there is only one board for a given project. Once a board is put into manufacture any revisions should go into a new folder/project so that the design data for all boards is easily accessible for troubleshooting without needing to dig through revision history.

The .gitignore file is configured for KiCad projects (as of 2023-12-06).

Main components on the Powermeter

ESP32-S3-WROOM-1AZ1117-3.3

Powermeter bill of materials (BOM)

20 components, 15 distinct parts.

QtyPartRefs
1
~
U1
1
ESP32-S3-WROOM-1
U2
1
AZ1117-3.3
U3
2
Conn_01x04_Pin
J2, J4
1
Conn_01x02_Socket
J3
1
USB_C_Plug_USB2.0
P1
1
~
ADS131M03
1
~
MPU6000
2
100n
C1, C7
1
2.2n
C2
2
1u
C3, C9
1
220n
C4
2
22u
C5, C6
1
10n
C8
2
22
R1, R2

Powermeter design files

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

Powermeter: common questions

What microcontroller does the Powermeter use?

The Powermeter is built around the ESP32-S3-WROOM-1, from the ESP32 family.

How big is the Powermeter PCB?

The Powermeter measures 34.6 × 35.6 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Powermeter?

20 components, from 15 distinct parts. The full bill of materials is listed on this page.

Where can I download the Powermeter design files?

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

Can I use the Powermeter design in my own project?

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

Can I test firmware for the Powermeter 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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