HardLabs

UPLC-Digital

fredriknk·uPLC-Digital·CAD/uplc-digital/uplc-digital.kicad_pcb

UPLC-Digital PCB layout, top view — open source ESP32 board by fredriknk

About the UPLC-Digital PCB

UPLC-Digital is an open source ESP32 PCB design by fredriknk, published on GitHub under the MIT license. It is a 4-layer board measuring 31.4 × 22 mm, with 41 components from 17 distinct parts.

Its main chip is the ESP32-C3-WROOM-02-N4, from the ESP32 family. Other key parts include the AP63201WU-7 and TBD62003AFWG. By type, the board carries 12 jumpers, 10 resistors, 9 capacitors, 4 diodes, 3 ICs and 1 crystal.

Main components on the UPLC-Digital

AP63201WU-7TBD62003AFWGESP32-C3-WROOM-02-N4

UPLC-Digital bill of materials (BOM)

41 components, 17 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
AP63201WU-7
AP63201WU
U1
1
TBD62003AFWG
U2
1
ESP32-C3-WROOM-02-N4
ESP32-C3-WROOM-02
U3
1
Q13FC13500004
32.768khz 3215 12.5pf
Y1
1
SM12B-GHS-TB(LF)(SN)
J2
12
RTT02000JTH
0R
JP1, JP2, JP3, JP4, JP5, JP6, JP7, JP8 +4
4
1N5819WS
D1, D2, D3, D4
1
LQM2HPN4R7MG0L
4.7uH
L1
2
0402CG200J500NT
20pf
C1, C4
3
GRM155R71H104KE14D
0.1uF
C2, C3, C9
1
GRM21BR6YA106KE43L
10uF
C5
3
GRM155R60J226ME11D
22uf
C8, C11, C12
6
0402WGF1002TCE
10K
R1, R2, R3, R4, R5, R6
1
RTT023093FTH
309k
R7
1
0402WGF1000TCE
100R
R13
1
0402WGF1823TCE
182k
R14
1
RC0402FR-0762KL
62k
R15

UPLC-Digital design files

The KiCad project lives in the fredriknk/uPLC-Digital repository on GitHub; these links point at the commit this page was built from.

UPLC-Digital: common questions

What microcontroller does the UPLC-Digital use?

The UPLC-Digital is built around the ESP32-C3-WROOM-02-N4, from the ESP32 family.

How big is the UPLC-Digital PCB?

The UPLC-Digital measures 31.4 × 22 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the UPLC-Digital?

41 components, from 17 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 UPLC-Digital design files?

From the fredriknk/uPLC-Digital 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 UPLC-Digital design in my own project?

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

Can I test firmware for the UPLC-Digital 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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