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Pcap04-capacitance readout

NautyXie·pcap04-capacitance-readout·hardware/PCAP04_Acquisition_3CH_v1.5_100mm_C496550.kicad_pcb

Pcap04-capacitance readout PCB layout, top view — open source STM32 board by NautyXie
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About the Pcap04-capacitance readout PCB

Pcap04-capacitance readout is an open source STM32 PCB design by NautyXie, published on GitHub under the MIT license. It is a 4-layer board measuring 100 × 100 mm, with 69 components from 39 distinct parts.

Its main chip is the STM32G0B1CBT6, from the STM32 family. Other key parts include the PCAP04-AQFM-24, TLV75533PDBVR, TPS7A2033PDBVR, TPS22918DBVR and SN74LV125APWR. By type, the board carries 15 capacitors, 11 connectors, 7 ICs, 1 fuse, 1 switch and 1 diode.

From the project

KiCad 7 project for the PCAP04 3-channel capacitance readout board. 100 × 100 mm, 4 layers, SMA edge connectors.

KiCad 7 project for the PCAP04 3-channel capacitance readout board. 100 × 100 mm, 4 layers, SMA edge connectors.

Licence: CERN-OHL-P-2.0 (permissive). See ../LICENSES/CERN-OHL-P-2.0.txt.

A rendered schematic is at ../docs/schematic.pdf, and board renders are in ../docs/images/, so you can read the design without installing KiCad.

manufacturing/ is ready to upload as-is. It was produced for and verified at JLCPCB, but the gerbers are standard.

Main components on the Pcap04-capacitance readout

PCAP04-AQFM-24STM32G0B1CBT6TLV75533PDBVRTPS7A2033PDBVRTPS22918DBVRSN74LV125APWRUSBLC6-2SC6

Pcap04-capacitance readout bill of materials (BOM)

69 components, 39 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
PCAP04-AQFM-24
PCAP04-AQFM-24_V2
U1
1
STM32G0B1CBT6
U2
1
TLV75533PDBVR
U3
1
TPS7A2033PDBVR
U4
1
TPS22918DBVR
U5
1
SN74LV125APWR
U6
1
USBLC6-2SC6
U7
1
C165948
USB-C_USB2_DEVICE
J1
6
BWSMA-KE-P001 / C496550
J2, J3, J4, J5, J6, J7
1
EXT_5V_LOW_NOISE
J8
1
SWD
J9
1
UART_HOST
J10
1
C49257
5V_SOURCE_SELECT
J11
1
1n_DNP
CCH0
1
C3899854
1n
CCT1
1
C1525
100n
CNRST1
1
100pF_C0G_0.1%_DNP
CTEST1
6
DNP
ESD0, ESD1, ESD2, ESD3, ESD4, ESD5
1
C2154056
500mA_PTC
F1
2
C25905
5.1k_1%
RCC1, RCC2
Show 19 more
QtyPartRefs
1
C21189
0R_FITTED
RCH0
1
1M_DNP
RCH1
3
C25105
33R
RCS1, RMOSI1, RSCK1
1
100k
RCS_PU1
3
C25741
100k
RENPD1, ROEPU1, RPS2
1
C11702
1k
RIRQ1
2
C25744
10k
RIRQPD1, RNRST1
6
C17168
0R
RPC0, RPC1, RPC2, RPC3, RPC4, RPC5
1
C25779
330k
RPS1
1
C25117
470R
RQOD1
1
C116501
RESET
SW1
1
C151296
SMF5.0A
D1
1
C19330
600R@100MHz
FB1
5
C1525
100n
C1, C2, C6, C8, C9
3
C15850
10u
C3, C7, C14
3
C19666
4.7u
C4, C10, C12
1
100n_DNP
C5
2
C15849
1u
C11, C13
1
C3855387
10n_C0G
C15

Pcap04-capacitance readout design files

The KiCad project lives in the NautyXie/pcap04-capacitance-readout repository on GitHub; these links point at the commit this page was built from.

Pcap04-capacitance readout: common questions

What microcontroller does the Pcap04-capacitance readout use?

The Pcap04-capacitance readout is built around the STM32G0B1CBT6, from the STM32 family.

How big is the Pcap04-capacitance readout PCB?

The Pcap04-capacitance readout measures 100 × 100 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Pcap04-capacitance readout?

69 components, from 39 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 Pcap04-capacitance readout design files?

From the NautyXie/pcap04-capacitance-readout 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 Pcap04-capacitance readout design in my own project?

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

Can I test firmware for the Pcap04-capacitance readout without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

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