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Mdb slave esp32s3-sim7080g

nodestark·mdb-esp32-cashless·kicad/mdb-slave-esp32s3-sim7080g/mdb-slave-esp32s3-sim7080g.kicad_pcb

Mdb slave esp32s3-sim7080g PCB layout, top view — open source ESP32 board by nodestark
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About the Mdb slave esp32s3-sim7080g PCB

Mdb slave esp32s3-sim7080g is an open source ESP32 PCB design by nodestark, published on GitHub under the MIT license. It is a 2-layer board measuring 65 × 40 mm, with 77 components from 35 distinct parts.

Its main chip is the ESP32-S3FH4R2, from the ESP32 family. Other key parts include the SIM7080G, LM2594HVM-3.3 and TLP785. By type, the board carries 26 resistors, 19 capacitors, 8 connectors, 7 transistors, 5 ICs and 5 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 slave esp32s3-sim7080g, from the project README
From the project README

Main components on the Mdb slave esp32s3-sim7080g

ESP32-S3FH4R2SIM7080GLM2594HVM-3.3TLP785

Mdb slave esp32s3-sim7080g bill of materials (BOM)

77 components, 35 distinct parts.

QtyPartRefs
1
ESP32-S3FH4R2
U1
1
SIM7080G
U2
1
LM2594HVM-3.3
U3
2
TLP785
U4, U5
7
MMBT3904
Q1, Q2, Q3, Q4, Q5, Q6, Q7
1
Crystal_GND24
Y1
1
USB_C_Receptacle_USB2.0_16P
J1
1
JAE_SIM_Card_SF72S006
J2
2
Conn_01x03_Pin
J3, J7
2
Conn_Coaxial
J4, J5
1
MDB_Connector
J6
1
Conn_01x04_Pin
J8
1
Buzzer
BZ1
1
SW_Push
SW1
3
D_Schottky
D1, D3, D4
1
XL-2121RGBC-2812B
D2
1
FerriteBead_Small
FB1
1
2.4nh
L1
1
100uH
L2
1
5.6nh
L3
Show 15 more
QtyPartRefs
1
3.9nh
L4
3
1.8pf
C1, C2, C19
3
1uF
C3, C8, C13
2
12pF
C4, C5
1
10uF
C6
7
0.1uF
C7, C9, C10, C11, C14, C16, C18
1
10uF
C12
1
100uF
C15
1
220uF
C17
9
10k
R1, R2, R3, R7, R8, R9, R20, R22 +1
9
4K7
R4, R5, R6, R15, R19, R21, R23, R24 +1
2
5.1k
R10, R11
3
22ohm
R12, R13, R14
2
470ohm
R16, R18
1
1k
R17

Mdb slave esp32s3-sim7080g 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-sim7080g: common questions

What microcontroller does the Mdb slave esp32s3-sim7080g use?

The Mdb slave esp32s3-sim7080g is built around the ESP32-S3FH4R2, from the ESP32 family.

How big is the Mdb slave esp32s3-sim7080g PCB?

The Mdb slave esp32s3-sim7080g measures 65 × 40 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Mdb slave esp32s3-sim7080g?

77 components, from 35 distinct parts. The full bill of materials is listed on this page.

Where can I download the Mdb slave esp32s3-sim7080g 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-sim7080g 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-sim7080g 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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