HardLabs

WoMoHome

Sharki-66·womo-home-esp32·hardware/schematics/Sensorboard/Sensorboard.kicad_pcb

WoMoHome PCB layout, top view — open source ESP32 board by Sharki-66

About the WoMoHome PCB

WoMoHome is an open source ESP32 PCB design by Sharki-66, published on GitHub under the MIT license. It is a 2-layer board measuring 138 × 76 mm, with 74 components from 32 distinct parts.

Its main chip is the ESP32-S3-DevKitC, from the ESP32 family. Other key parts include the TSR2-2450, LDL1117S33R, SP3485CP, PCF8523T and BNO055. By type, the board carries 31 resistors, 12 capacitors, 7 transistors, 7 connectors, 7 diodes and 6 ICs.

It belongs with the iot & wireless, displays & leds and rf & radio designs in this gallery.

From the project

Caravan Smart Home Display with esp32

Wer mit dem Wohnmobil unterwegs ist, kennt das Problem: Wie viel Gas ist noch in der Flasche? Reicht der Strom? Ist der Frischwassertank bald leer? Wie kalt wird es draußen über Nacht? Die serienmäßigen Anzeigen im Fahrzeug sind oft ungenau, schlecht ablesbar oder schlicht nicht vorhanden.

WoMo Home ersetzt das klassische EBL-Panel (LT 45x) durch ein selbstgebautes System, das alle Betriebsdaten des Wohnmobils erfasst, intelligent aufbereitet und auf einem 7-Zoll-Touchdisplay darstellt – jederzeit aktuell, übersichtlich und von überall im Fahrzeug erreichbar.

WoMoHome, from the project README
From the project README

Main components on the WoMoHome

ESP32-S3-DevKitCTSR2-2450LDL1117S33RSP3485CPPCF8523TBNO055

WoMoHome bill of materials (BOM)

74 components, 32 distinct parts.

QtyPartRefs
1
ESP32-S3-DevKitC
U1
1
TSR2-2450
U2
1
LDL1117S33R
U3
1
SP3485CP
U4
1
PCF8523T
U5
1
BNO055
U6
5
BSS138
Q1, Q2, Q3, Q6, Q7
1
AO3401A
Q4
1
2N7002
Q5
1
32.768
Y1
1
Grauwasser
J1
1
BME680 #0 Innen
J3
1
RS485
J4
1
BME680 #1 Außen
J5
1
HX711 GasWaage
J6
1
LT452 Malibu
J7
1
Frischwasser
J8
1
Battery_Cell
BT1
1
USB PWR
TP1
1
Display Touch
TP2
Show 12 more
QtyPartRefs
2
BZV55B3V3
D1, D2
5
1N4148
D3, D4, D5, D6, D7
2
100uF
C1, C2
3
10uF
C3, C4, C6
6
100nF
C5, C8, C9, C10, C11, C12
1
1uF
C7
7
100
R1, R2, R11, R13, R15, R28, R30
1
120
R3
12
100k
R4, R5, R7, R9, R12, R14, R16, R17 +4
5
1k
R6, R24, R25, R26, R27
4
22k
R8, R10, R18, R20
2
10k
R22, R23

WoMoHome design files

The KiCad project lives in the Sharki-66/womo-home-esp32 repository on GitHub; these links point at the commit this page was built from.

WoMoHome: common questions

What microcontroller does the WoMoHome use?

The WoMoHome is built around the ESP32-S3-DevKitC, from the ESP32 family.

How big is the WoMoHome PCB?

The WoMoHome measures 138 × 76 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the WoMoHome?

74 components, from 32 distinct parts. The full bill of materials is listed on this page.

Where can I download the WoMoHome design files?

From the Sharki-66/womo-home-esp32 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the WoMoHome design in my own project?

Yes, under the terms of its MIT license, which Sharki-66 chose for the repository.

Can I test firmware for the WoMoHome 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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