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Mdb bridge esp32s3

nodestark·mdb-esp32-cashless·kicad/mdb-bridge-esp32s3/mdb-bridge-esp32s3.kicad_pcb

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

Mdb bridge esp32s3 is an open source ESP32 PCB design by nodestark, published on GitHub under the MIT license. It is a 2-layer board measuring 39 × 40 mm, with 50 components from 28 distinct parts.

Its main chip is the ESP32-S3FH4R2, from the ESP32 family. Other key parts include the TLP785, AP2112K-3.3 and LM2594HVM-5.0. By type, the board carries 15 capacitors, 14 resistors, 5 ICs, 5 connectors, 4 diodes and 3 inductors.

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 bridge esp32s3, from the project README
From the project README

Main components on the Mdb bridge esp32s3

TLP785AP2112K-3.3ESP32-S3FH4R2LM2594HVM-5.0

Mdb bridge esp32s3 bill of materials (BOM)

50 components, 28 distinct parts.

QtyPartRefs
2
TLP785
U1, U4
1
AP2112K-3.3
U2
1
ESP32-S3FH4R2
U3
1
LM2594HVM-5.0
U17
1
MMBT3906
Q5
1
40MHz
Y1
2
MDB_Connector
J1, J9
1
USB_C_Receptacle_USB2.0_16P
J2
1
Conn_Coaxial
J4
1
Conn_01x04_Pin
J8
1
SW_Push
SW1
1
XL-2121RGBC-2812B
XL-2121RGBC-WS2812B
XINGLIGHT(成兴光)
LED1
4
D_Schottky
D2, D5, D12, D15
1
FerriteBead
FB2
1
2.4nH
L1
1
100uH
L6
4
1uF
C1, C2, C3, C15
1
1.8pF
C4
2
12pF
C5, C6
5
0.1uF
C7, C8, C14, C16, C17
Show 8 more
QtyPartRefs
1
10uF
C13
1
100uF
C31
1
100uF
C32
3
1k
R1, R10, R32
2
470R
R2, R5
4
10k
R3, R4, R6, R9
2
5.1k
R7, R8
3
4.7k
R24, R25, R31

Mdb bridge esp32s3 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 bridge esp32s3: common questions

What microcontroller does the Mdb bridge esp32s3 use?

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

How big is the Mdb bridge esp32s3 PCB?

The Mdb bridge esp32s3 measures 39 × 40 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Mdb bridge esp32s3?

50 components, from 28 distinct parts. The full bill of materials is listed on this page.

Where can I download the Mdb bridge esp32s3 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 bridge esp32s3 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 bridge esp32s3 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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