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Prototype-3

mylife-home·mylife-home-devices·epanel-energy-monitor/prototype-3/prototype-3.kicad_pcb

Prototype-3 PCB layout, top view — open source ESP32 board by mylife-home

About the Prototype-3 PCB

Prototype-3 is an open source ESP32 PCB design by mylife-home, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 100 × 100 mm, with 68 components from 29 distinct parts.

Its main chip is the ESP32-POE, from the ESP32 family. Other key parts include the LTV-814, MCP3208, ADS1115 and LMV321. By type, the board carries 35 resistors, 19 connectors, 5 ICs, 5 capacitors, 1 transistor and 1 transformer.

From the project

MyLife Home devices

- 12 capteurs - abonnement 12KVA ~ 55A - 4 sur inter diff (entre 40A et 63A) - 8 sur disjoncteurs (entre 10A et 32A) - teleinfo

- MCP3208 x2 - déplacer ESP dans un boitier DIN a part

- Boîtier : - https://fr.rs-online.com/web/p/boitiers-rail-din/7495837 - https://fr.farnell.com/camdenboss/cnmb-6-kit/boitier-rail-din-m6/dp/3954259 - Borniers : - Petits : https://fr.rs-online.com/web/p/borniers-pour-circuits-imprimes/7901098 - Grands : https://fr.rs-online.com/web/p/borniers-pour-circuits-imprimes/1444286 - Selecteurs : -…

Prototype-3, from the project README
From the project README

Main components on the Prototype-3

ESP32-POELTV-814MCP3208ADS1115LMV321

Prototype-3 bill of materials (BOM)

68 components, 29 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-POE
U1
1
LTV-814
U2
1
MCP3208
U3
1
ADS1115
U4
1
LMV321
U5
1
BSS138
Q1
2
CONN_01X01_MALE
Conn_01x01_Male
J1, J2
5
SCREW_TERMINAL_01X02
Screw_Terminal_01x02
J3, J5, J17, J18, J19
1
CONN_01X01
Conn_01x01
J4
4
CONN_02X03
Conn_02x03
J6, J7, J8, J9
4
CONN_01X03_MALE
Conn_01x03_Male
J10, J11, J12, J13
3
CONN_02X05
Conn_02x05
J14, J15, J16
1
Alim RS PRO 5V 1A
PS1
1
230V - 6V
T1
1
LED
D1
1
1UF/6V
1uF/6V
C1
4
10UF/6V
10uF/6V
C2, C3, C4, C5
5
1KΩ
R1, R15, R16, R17, R18
1
10KΩ
R2
1
3.3KΩ
R3
Show 9 more
QtyPartRefs
1
220Ω
R4
3
12KΩ
R5, R6, R20
8
470KΩ
R7, R8, R9, R10, R11, R12, R13, R14
1
100KΩ
R19
3
C560506
200Ω/0.5W
R21, R26, R31
3
C543533
120Ω/0.5W
R22, R27, R32
3
C417003
100Ω/0.5W
R23, R28, R33
3
C560547
62Ω/0.5W
R24, R29, R34
3
C560522
33Ω/0.5W
R25, R30, R35

Prototype-3 design files

The KiCad project lives in the mylife-home/mylife-home-devices repository on GitHub; these links point at the commit this page was built from.

Prototype-3: common questions

What microcontroller does the Prototype-3 use?

The Prototype-3 is built around the ESP32-POE, from the ESP32 family.

How big is the Prototype-3 PCB?

The Prototype-3 measures 100 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Prototype-3?

68 components, from 29 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Prototype-3 design files?

From the mylife-home/mylife-home-devices repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Prototype-3 design in my own project?

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

Can I test firmware for the Prototype-3 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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