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Mercurio-RevB

indoor-industry·Mercurio-RevB·Bare chip/LoRa-device.kicad_pcb

Mercurio-RevB PCB layout, top view — open source ESP32 board by indoor-industry
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About the Mercurio-RevB PCB

Mercurio-RevB is an open source ESP32 PCB design by indoor-industry, published on GitHub under the GPL-3.0 license. It is a 4-layer board measuring 86.4 × 50.8 mm, with 162 components from 62 distinct parts.

Its main chip is the ESP32-S3, from the ESP32 family. Other key parts include the W25Q128JVS, ICS-43432, SK-12D02-VG5, USBLC6-2P6 and BQ25185DLHR. By type, the board carries 65 resistors, 53 capacitors, 15 ICs, 8 connectors, 5 inductors and 4 diodes.

It belongs with the rf & radio designs in this gallery.

From the project

Requires CDFER's KiCAD library (https://github.com/CDFER/JLCPCB-Kicad-Library) and the custom symbol and footprint libraries in Component models/KiCADsymbol library.

Requires CDFER's KiCAD library (https://github.com/CDFER/JLCPCB-Kicad-Library) and the custom symbol and footprint libraries in Component models/KiCADsymbol library.

Contains version with bare ESP32-S3R8 chip and version with ESP32-WROOM-1 module. Only major difference is bare chip version features RTC clock and uses strapping pin GPIO46 for ILI9341 DC line. This should work but has to be tested.

Main components on the Mercurio-RevB

ESP32-S3W25Q128JVSICS-43432SK-12D02-VG5USBLC6-2P6BQ25185DLHRTPS22917LDBVMHCI04020-2R2M-R8XC6206P332MRTLV62569DBVMCP23017_MLHJ-SMA275RA-01SH-PL76KB-A58MAX98357A

Mercurio-RevB bill of materials (BOM)

162 components, 62 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-S3
U1
1
W25Q128JVS
U2
1
ICS-43432
U3
1
SK-12D02-VG5
U5
1
USBLC6-2P6
U6
1
BQ25185DLHR
U7
1
TPS22917LDBV
U8
1
MHCI04020-2R2M-R8
U9
1
XC6206P332MR
Torex Semicon
U10
1
TLV62569DBV
U12
1
MCP23017_ML
U14
1
HJ-SMA275
U15
1
RA-01SH-P
U17
1
L76KB-A58
U18
1
MAX98357A
U19
1
C32346
32.768 kHz
Y1
1
C5261125
40MHz(10ppm)
Y2
1
MICRO_SD_CARD_DET1
Micro_SD_Card_Det1
J1
1
USB_C_Receptacle_USB2.0_14P
J2
2
CONN_01X04_PIN
Conn_01x04_Pin
J3, J6
Show 42 more
QtyPartRefs
1
CONN_01X14_PIN
Conn_01x14_Pin
J4
1
C5137195
U.FL
J8
2
1_25T-1-2A
P1, P2
1
Antenna
AE1
4
~
DNP2, DNP4, DNP6, DNP7
2
C720477
Tactile Button, 160gf
XUNPU
FLASH1, RESET1
2
EVQPUC02K
SW1, SW2
1
TestPoint
TP1
4
LED
D2, D3, D4, D5
1
68NH
68nH
L2
1
2NH
2nH
L3
1
24NH
24nH
L4
1
DNP
L5
1
2.7NH
2.7nH
L6
1
2.2UF
2.2uF
Samsung Electro-Mechanics
C1
4
10UF
10uF
Samsung Electro-Mechanics
C2, C6, C34, C55
15
100NF
100nF
Samsung Electro-Mechanics
C3, C10, C15, C16, C18, C21, C23, C29 +7
7
10UF
10uF
Samsung Electro-Mechanics
C4, C7, C11, C13, C20, C47, C48
9
1UF
1uF
Samsung Electro-Mechanics
C5, C17, C19, C25, C26, C41, C42, C45 +1
1
10NF
10nF
Samsung Electro-Mechanics
C8
2
33PF
33pF
FH(Guangdong Fenghua Advanced Tech)
C9, C24
2
1.4PF
1.4pF
C12, C31
1
DNP
C14
4
12PF
12pF
FH(Guangdong Fenghua Advanced Tech)
C22, C37, C38, C49
2
100PF
100pF
FH(Guangdong Fenghua Advanced Tech)
C27, C28
1
1NF
1nF
FH(Guangdong Fenghua Advanced Tech)
C35
2
4.7UF
4.7uF
Samsung Electro-Mechanics
C43, C54
1
220PF
220pF
FH(Guangdong Fenghua Advanced Tech)
C44
1
22UF
22uF
Samsung Electro-Mechanics
C56
3
100kΩ
UNI-ROYAL(Uniroyal Elec)
R1, R7, R33
2
1kΩ
UNI-ROYAL(Uniroyal Elec)
R2, R18
19
10kΩ
UNI-ROYAL(Uniroyal Elec)
R3, R4, R11, R14, R16, R17, R22, R25 +11
9
33Ω
UNI-ROYAL(Uniroyal Elec)
R5, R15, R20, R34, R35, R43, R44, R45 +1
19
0Ω
UNI-ROYAL(Uniroyal Elec)
R6, R8, R9, R10, R21, R26, R27, R28 +11
2
470Ω
UNI-ROYAL(Uniroyal Elec)
R12, R19
2
5.1kΩ
UNI-ROYAL(Uniroyal Elec)
R13, R42
2
47kΩ
UNI-ROYAL(Uniroyal Elec)
R23, R40
2
100Ω
UNI-ROYAL(Uniroyal Elec)
R24, R36
1
510Ω
UNI-ROYAL(Uniroyal Elec)
R32
1
22kΩ
UNI-ROYAL(Uniroyal Elec)
R38
2
2.2kΩ
UNI-ROYAL(Uniroyal Elec)
R47, R48
1
13kΩ
UNI-ROYAL(Uniroyal Elec)
R51

Mercurio-RevB design files

The KiCad project lives in the indoor-industry/Mercurio-RevB repository on GitHub; these links point at the commit this page was built from.

Mercurio-RevB: common questions

What microcontroller does the Mercurio-RevB use?

The Mercurio-RevB is built around the ESP32-S3, from the ESP32 family.

How big is the Mercurio-RevB PCB?

The Mercurio-RevB measures 86.4 × 50.8 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Mercurio-RevB?

162 components, from 62 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 Mercurio-RevB design files?

From the indoor-industry/Mercurio-RevB 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 Mercurio-RevB design in my own project?

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

Can I test firmware for the Mercurio-RevB 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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