HardLabs

Twisted

Triax-Labs·twisted·hardware/twisted/Twisted.kicad_pcb

Twisted PCB layout, top view — open source ESP32 board by Triax-Labs

About the Twisted PCB

Twisted is an open source ESP32 PCB design by Triax-Labs, published on GitHub under the CC-BY-NC-4.0 license. It is a 4-layer board measuring 14 × 32.7 mm, with 49 components from 29 distinct parts.

Its main chip is the ESP32-S3FH4R2, from the ESP32 family. Other key parts include the FXL6408UMX, LW5233N11E, BQ25628RYKR, KH-1.27FH-2X10P-H4.3-SMT and H5VU25UC. By type, the board carries 19 capacitors, 7 switches, 6 ICs, 6 test points, 4 resistors and 2 inductors.

It belongs with the audio, iot & wireless and displays & leds designs in this gallery.

From the project

The key chain sized ESP32-S3 expandable platform.

Twisted is a tiny (14x32mm to be precise) ESP32-S3 based platform, which has dual Xtensa LX7 cores, 4Mb of flash, 2Mb of PSRAM, 512Kb of SRAM as well as BLE and WiFi on board, paired with an 0.42" IPS LCD, a keypad, a Neopixel and built-in battery management with USB OTG.

There is one more thing, the platform is extendable! It features a 20pin 1.27mm expansion header which allows you of attaching other boards that add more feature, and also give the Twisted a reason for its name.

Twisted, from the project README
From the project README

Main components on the Twisted

FXL6408UMXLW5233N11EBQ25628RYKRKH-1.27FH-2X10P-H4.3-SMTESP32-S3FH4R2H5VU25UC

Twisted bill of materials (BOM)

49 components, 29 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
FXL6408UMX
onsemi(安森美)
U1
1
LW5233N11E
Lewa Micro(乐瓦微电子)
U2
1
BQ25628RYKR
TI(德州仪器)
U3
1
KH-1.27FH-2X10P-H4.3-SMT
U4
1
ESP32-S3FH4R2
U6
1
H5VU25UC
R+O(宏嘉诚)
U8
1
SX16Y040000B71T001
X1
1
battery connector
J1
1
~
LCD1
7
TS-1088-AR02016
SW1, SW2, SW3, SW4, SW5, SW6, SW7
1
RESET
TP1
1
UART_RX
TP2
1
UART_TX
TP3
1
BAT_STAT
TP4
1
SDA
TP5
1
SCL
TP6
1
TYPE-C-31-M-12
USBC1
1
DY-S1515065/RGBC/6805-5T
TONYU(东裕)
LED3
1
KH-3216-A27
kinghelm(金航标)
L1
1
APH160808C1R0MP01
APH160808C1R0MX02
APV(爱普微)
L2
Show 9 more
QtyPartRefs
6
CL05B104KO5NNNC
SAMSUNG(三星)
C1, C3, C4, C6, C16, C19
7
CL05A475MP5NRNC
SAMSUNG(三星)
C5, C7, C8, C9, C11, C15, C18
1
CC0402KRX7R7BB104
CL05A475MP5NRNC
C10
2
CL05C100JB5NNNC
C12, C14
1
CL10B473KB8NNNC
SAMSUNG(三星)
C13
2
CL05A105KA5NQNC
SAMSUNG(三星)
C17, C20
2
0402WGF5601TCE
UNI-ROYAL(厚声)
R1, R2
1
0402WGF499JTCE
UNI-ROYAL(厚声)
R3
1
0402WGF1001TCE
UNI-ROYAL(厚声)
R5

Twisted design files

The KiCad project lives in the Triax-Labs/twisted repository on GitHub; these links point at the commit this page was built from.

Twisted: common questions

What microcontroller does the Twisted use?

The Twisted is built around the ESP32-S3FH4R2, from the ESP32 family.

How big is the Twisted PCB?

The Twisted measures 14 × 32.7 mm, has 4 copper layers and is 1.2 mm thick.

How many components are on the Twisted?

49 components, from 29 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 Twisted design files?

From the Triax-Labs/twisted 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 Twisted design in my own project?

It is published under CC-BY-NC-4.0, which limits how it may be reused; read the license before building on it.

Can I test firmware for the Twisted 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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