HardLabs

Lacarriere station

pier-cbd·lacarriere-station·Stage1/Kicad/lacarriereII.kicad_pcb

Lacarriere station PCB layout, top view — open source ESP32 board by pier-cbd

About the Lacarriere station PCB

Lacarriere station is an open source ESP32 PCB design by pier-cbd, published on GitHub. It is a 2-layer board measuring 92 × 92 mm, with 78 components from 39 distinct parts.

Its main chip is the ESP32_WROVER, from the ESP32 family. Other key parts include the PCA9557PW, USBLC6-2SC6, BQ25171QWDRCRQ1, CH340C and SIM800L-CORE. By type, the board carries 28 resistors, 26 capacitors, 17 ICs, 3 connectors and 1 inductor.

It belongs with the power & battery and sensors designs in this gallery.

Lacarriere station, from the project README
From the project README

Main components on the Lacarriere station

PCA9557PWUSBLC6-2SC6BQ25171QWDRCRQ1CH340CSIM800L-COREUMH3NFS8205HY2112TLV61070AXC6206P252MRXC6206P182MRESP32_WROVERBME280

Lacarriere station bill of materials (BOM)

78 components, 39 distinct parts.

QtyPartRefs
1
PCA9557PW
U1
1
USBLC6-2SC6
U2
1
BQ25171QWDRCRQ1
U3
1
CH340C
U4
1
SIM800L-CORE
U5
1
UMH3N
U6
1
FS8205
U7
1
HY2112
U8
1
TLV61070A
U9
1
XC6206P252MR
U10
1
XC6206P182MR
U11
1
ESP32_WROVER
U12
3
~
U13, U15, U17
2
BME280
U14, U16
1
USB_C_Receptacle_USB2.0
J1
1
Conn_02x06
J2
1
Conn_01x06_Pin
J3
1
Jumper_2_Bridged
BAT1
1
NC(NTC)
TH1
1
Jumper_2_Open
USB1
Show 19 more
QtyPartRefs
1
2.2u
L1
11
0.1u
C1, C3, C4, C5, C7, C8, C17, C20 +3
8
1u
C2, C6, C10, C12, C13, C14, C15, C16
1
10u
C9
1
NC(1u)
C11
1
100u
C18
1
NC(100u)
C19
3
15p
C22, C25, C26
6
10k
R1, R2, R21, R22, R25, R26
2
5.1k
R3, R4
1
750R
R5
6
0R
R6, R7, R10, R11, R14, R15
4
100k
R8, R9, R16, R27
1
NC
R12
1
62k
R13
3
100R
R17, R18, R20
1
2k
R19
2
1M
R23, R24
1
14k
R28

Lacarriere station design files

The KiCad project lives in the pier-cbd/lacarriere-station repository on GitHub; these links point at the commit this page was built from.

Lacarriere station: common questions

What microcontroller does the Lacarriere station use?

The Lacarriere station is built around the ESP32_WROVER, from the ESP32 family.

How big is the Lacarriere station PCB?

The Lacarriere station measures 92 × 92 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Lacarriere station?

78 components, from 39 distinct parts. The full bill of materials is listed on this page.

Where can I download the Lacarriere station design files?

From the pier-cbd/lacarriere-station repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Lacarriere station design in my own project?

The repository has no license, so all rights stay with pier-cbd. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Lacarriere station 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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