HardLabs

Mia ou

antoine-prrn·mia-ou·embedded/main-pcb/main-pcb.kicad_pcb

Mia ou PCB layout, top view — open source ESP32 board by antoine-prrn

About the Mia ou PCB

Mia ou is an open source ESP32 PCB design by antoine-prrn, published on GitHub. It is a 4-layer board measuring 50 × 22 mm, with 56 components from 31 distinct parts.

Its main chip is the ESP32-H2-MINI-1, from the ESP32 family. Other key parts include the nPM1300-QEXX, MAX17048G+T10, BMI270, RAK3172 and BME280. By type, the board carries 21 capacitors, 17 resistors, 6 ICs, 4 diodes, 2 crystals and 1 transistor.

It belongs with the iot & wireless and sensors designs in this gallery.

From the project

This directory contains the firmware and hardware design for the Mia-ou connected pet collar embedded system.

This directory contains the firmware and hardware design for the Mia-ou connected pet collar embedded system.

The embedded system is built around an ESP32-H2 microcontroller and integrates multiple sensors and communication modules to provide comprehensive pet monitoring capabilities. The firmware is written in Rust NO_STD using the Embassy async framework and the esp-hal.

Mia ou, from the project README
From the project README

Main components on the Mia ou

nPM1300-QEXXMAX17048G+T10BMI270ESP32-H2-MINI-1RAK3172BME280

Mia ou bill of materials (BOM)

56 components, 31 distinct parts.

QtyPartRefs
1
nPM1300-QEXX
IC1
1
MAX17048G+T10
IC2
1
BMI270
IC3
1
ESP32-H2-MINI-1
U1
1
RAK3172
U2
1
BME280
U3
1
BC817W
Q1
1
BATTERY
X101
1
32.768kHz
Y1
1
629722000214
J1
1
SAM-M10Q-00B
ANT1
1
Buzzer
BZ1
1
ACTION_BUTTON
SW1
1
BAS316
D1
1
CHG
D2
1
LD1
D3
1
LD2
D4
1
2u2
L1
2
12p
C1, C2
5
10u
C3, C12, C14, C15, C16
Show 11 more
QtyPartRefs
10
100n
C4, C5, C6, C9, C10, C11, C17, C18 +2
3
1u
C7, C13, C21
1
2u2
C8
5
0
R1, R6, R8, R11, R15
1
0 (NC)
R2
6
10k
R3, R5, R7, R10, R16, R17
1
100k
R4
1
300k
R9
1
4.7k
R12
1
180
R13
1
150k
R14

Mia ou design files

The KiCad project lives in the antoine-prrn/mia-ou repository on GitHub; these links point at the commit this page was built from.

Mia ou: common questions

What microcontroller does the Mia ou use?

The Mia ou is built around the ESP32-H2-MINI-1, from the ESP32 family.

How big is the Mia ou PCB?

The Mia ou measures 50 × 22 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Mia ou?

56 components, from 31 distinct parts. The full bill of materials is listed on this page.

Where can I download the Mia ou design files?

From the antoine-prrn/mia-ou repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Mia ou design in my own project?

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

Can I test firmware for the Mia ou 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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