HardLabs

Readout 60pin

opentac·opentac.github.io·hardware/readout_60pin/readout_60pin.kicad_pcb

Readout 60pin PCB layout, top view — open source STM32 board by opentac

About the Readout 60pin PCB

Readout 60pin is an open source STM32 PCB design by opentac, published on GitHub under the MIT license. It is a 4-layer board measuring 37 × 34.3 mm, with 54 components from 32 distinct parts.

Its main chip is the STM32G431KBU6, from the STM32 family. Other key parts include the TLV9362IDDFR, ADG732BSUZ, LSM6DSV16BXTR, 74HC595BQ and TLV75533PDBVR. By type, the board carries 24 capacitors, 11 ICs, 11 resistors, 3 connectors, 2 diodes and 1 switch.

It belongs with the sensors and robotics & motion designs in this gallery.

From the project

OpenTac: open tools to design, fabricate, read and simulate flex-PCB tactile skins that sense normal and shear force, for any robot surface.

Reads one OpenTac sensor of up to 30 rows x 30 columns. This is the "I2C gain switch" version: the gain is set in firmware, with no jumpers.

- readout60pin.kicadpro, .kicadsch, .kicadpcb: the KiCad 10 project. Footprints, symbols and 3D models it uses are in ../libs. - production/: the JLCPCB fabrication files for the version that was ordered (exported 2026-10-15). - stm-i2c-60-switch.zip: Gerbers and drill files - stm-i2c-60-switchbom.csv: bill of materials, JLCPCB format (LCSC part numbers) - stm-i2c-60-switchpositions.csv: pick-and-place positions - stm-i2c-60-switchdesignators.csv…

Readout 60pin, from the project README
From the project README

Main components on the Readout 60pin

TLV9362IDDFRSTM32G431KBU6ADG732BSUZLSM6DSV16BXTR74HC595BQTLV75533PDBVRLM2776DBVRMAX14662ETI+T

Readout 60pin bill of materials (BOM)

54 components, 32 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
TLV9362IDDFR
IC1
1
STM32G431KBU6
IC3
1
ADG732BSUZ
IC4
1
LSM6DSV16BXTR
IC5
4
74HC595BQ
IC8, IC9, IC11, IC12
1
TLV75533PDBVR
TLV75533PDBV
U1
1
LM2776DBVR
LM2776
U7
1
MAX14662ETI+T
Analog Devices (Maxim)
U10
2
BM04B-SRSS-TB(LF)(SN)
JST
CN1, CN2
1
5051106091
MOLEX
J4
1
TS-1088-AR02016
S4
1
MicroXNJ
SHOU HAN(首韩)
USB2
1
XL-2020RGBC-2812B
XL-2020RGBC-WS2812B
XINGLIGHT(成兴光)
LED1
2
1N5819WS
Hottech(合科泰)
D1, D3
8
CL05B104KO5NNNC
0.1u
C1, C9, C10, C13, C14, C15, C17, C60
5
CL03A104KP3NNNC
0.1u
C2, C3, C16, C31, C32
4
CL05A106MQ5NUNC
10u
C28, C36, C38, C39
2
CL05A105KA5NQNC
1u
C34, C35
1
0402CG470J500NT
47p
C52
1
0402CG101J500NT
100p
C54
Show 12 more
QtyPartRefs
1
CC0402JRNPO9BN471
470p
C55
1
GRM1555C1H182JA01D
1.8n
C57
1
GRM1555C1H682JE01D
6.8n
C59
1
RC0201FR-0710KL
10k
R4
2
0402WGF1001TCE
1k
R6, R7
1
RC0201FR-07100KL
100k
R18
2
RC0201FR-074K7L
4.7k
R19, R20
1
0402WGF1002TCE
10k
R21
1
0402WGF4701TCE
4.7k
R23
1
0402WGF1101TCE
1.1k
R24
1
0402WGF2700TCE
270
R26
1
0402WGF680JTCE
68
R28

Readout 60pin design files

The KiCad project lives in the opentac/opentac.github.io repository on GitHub; these links point at the commit this page was built from.

Readout 60pin: common questions

What microcontroller does the Readout 60pin use?

The Readout 60pin is built around the STM32G431KBU6, from the STM32 family.

How big is the Readout 60pin PCB?

The Readout 60pin measures 37 × 34.3 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Readout 60pin?

54 components, from 32 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 Readout 60pin design files?

From the opentac/opentac.github.io 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 Readout 60pin design in my own project?

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

Can I test firmware for the Readout 60pin 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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