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Mdb slave esp32s3-mini

nodestark·mdb-esp32-cashless·kicad/mdb-slave-esp32s3-mini/mdb-slave-esp32s3-mini.kicad_pcb

Mdb slave esp32s3-mini PCB layout, top view — open source ESP32 board by nodestark
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About the Mdb slave esp32s3-mini PCB

Mdb slave esp32s3-mini is an open source ESP32 PCB design by nodestark, published on GitHub under the MIT license. It is a 2-layer board measuring 26.6 × 38.7 mm, with 38 components from 24 distinct parts.

Its main chip is the ESP32-S3FH4R2, from the ESP32 family. Other key parts include the TLP785 and LM2594HVM-3.3. By type, the board carries 12 resistors, 11 capacitors, 4 ICs, 4 diodes, 3 inductors and 2 connectors.

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

From the project

ESP32-based MDB cashless device for vending machines, supporting EVA DTS DEX/DDCMP telemetry and payments over the MDB protocol via Bluetooth and MQTT

This repository contains open hardware projects for MDB-based cashless devices built around the ESP32 platform.

👉 https://www.pcbway.com/project/member/?bmbno=1B3B95CB-4E28-4D

Mdb slave esp32s3-mini, from the project README
From the project README

Main components on the Mdb slave esp32s3-mini

TLP785ESP32-S3FH4R2LM2594HVM-3.3

Mdb slave esp32s3-mini bill of materials (BOM)

38 components, 24 distinct parts.

QtyPartRefs
2
TLP785
U1, U4
1
ESP32-S3FH4R2
U3
1
LM2594HVM-3.3
U5
1
40MHz
Y1
1
MDB_Connector
J1
1
USB_C_Receptacle_USB2.0_16P
J2
1
SW_Push
SW1
3
D_Schottky
D1, D2, D5
1
LED
D3
1
FerriteBead
FB2
1
2.4nH
L1
1
100uH
L2
2
1uF
C1, C15
1
220uF
C2
1
100uF
C3
1
1.8pF
C4
2
12pF
C5, C6
1
10uF
C13
3
0.1uF
C14, C16, C17
2
4.7k
R1, R11
Show 4 more
QtyPartRefs
2
470R
R2, R5
4
10k
R3, R4, R6, R9
2
5.1k
R7, R8
2
1k
R10, R12

Mdb slave esp32s3-mini design files

The KiCad project lives in the nodestark/mdb-esp32-cashless repository on GitHub; these links point at the commit this page was built from.

Mdb slave esp32s3-mini: common questions

What microcontroller does the Mdb slave esp32s3-mini use?

The Mdb slave esp32s3-mini is built around the ESP32-S3FH4R2, from the ESP32 family.

How big is the Mdb slave esp32s3-mini PCB?

The Mdb slave esp32s3-mini measures 26.6 × 38.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Mdb slave esp32s3-mini?

38 components, from 24 distinct parts. The full bill of materials is listed on this page.

Where can I download the Mdb slave esp32s3-mini design files?

From the nodestark/mdb-esp32-cashless repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Mdb slave esp32s3-mini design in my own project?

Yes, under the terms of its MIT license, which nodestark chose for the repository.

Can I test firmware for the Mdb slave esp32s3-mini 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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