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Handheld hybrid carrier

gunnchOS3k·gunnchos-hardware-industrial-design·device_designs/handheld_hybrid/kicad/handheld_hybrid.kicad_pcb

Handheld hybrid carrier PCB layout, top view — open source STM32 board by gunnchOS3k

About the Handheld hybrid carrier PCB

Handheld hybrid carrier is an open source STM32 PCB design by gunnchOS3k, published on GitHub under the MIT license. It is a 4-layer board measuring 240 × 130 mm, with 26 components from 26 distinct parts.

Its main chip is the STM32F103C8T6, from the STM32 family. Other key parts include the TPS62864. By type, the board carries 2 capacitors, 2 resistors, 1 IC and 1 diode.

From the project

gunnchOS3k MLV — 7GC Research + Product Incubator

Updated: 2026-08-08T19:40:00Z Exact SoM: Radxa NX5 RM121-D8E32 (RK3588S, 8GB+32GB eMMC) ADR: ADR-FP-002 + ADR-HW-001 PHYSICALEXECUTIONFREEZE ACTIVE — no fab, no purchase, draft digital only

Sustained game load: docs/sustainedgameload.md. SoM ICD: docs/somcarriericd.md.

Main components on the Handheld hybrid carrier

TPS62864

Handheld hybrid carrier bill of materials (BOM)

26 components, 26 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
TPS62864
U3V3
1
PESD5V0S1UL
DESD1
1
AUDIO_CONN
AUDIO
JAUD1
1
BATTERY_CONN
BATTERY
JBAT1
1
CAMERA_CONN
CAMERA
JCAM1
1
DEBUG_CONN
DEBUG
JDBG1
1
DISPLAY_MIPI_CONN
DISPLAY_MIPI
JDISP1
1
EC_FAN_CONN
EC_FAN
JFAN1
1
GNSS_CONN
GNSS
JGNSS1
1
HAPTICS_CONN
HAPTICS
JHAP1
1
KEYBOARD_CONN
KEYBOARD
JKEY1
1
SECURITY_CONN
SECURITY
JSEC1
1
SODIMM-260
JSOM1
1
TOUCH_CONN
TOUCH
JTP1
1
TRACKPAD_CONN
TRACKPAD
JTRK1
1
HRO TYPE-C-31-M-12
TYPE-C-31-M-12
JUSB1
1
WIFI_CONN
WIFI
JWIFI1
1
WWAN_CONN
WWAN
JWWAN1
1
BQ25895RTWR
UCHG1
1
STM32F103C8T6
UHID1
Show 6 more
QtyPartRefs
1
TPS65987DDHRSHR
UPD1
1
APTD1608LCGCK
D1
1
CL05A104KA5NNNC
C1
1
GRM188R60J106ME47D
C2
1
RC0402FR-0710KL
R1
1
RC0402FR-071K0L
R2

Handheld hybrid carrier design files

The KiCad project lives in the gunnchOS3k/gunnchos-hardware-industrial-design repository on GitHub; these links point at the commit this page was built from.

Handheld hybrid carrier: common questions

What microcontroller does the Handheld hybrid carrier use?

The Handheld hybrid carrier is built around the STM32F103C8T6, from the STM32 family.

How big is the Handheld hybrid carrier PCB?

The Handheld hybrid carrier measures 240 × 130 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Handheld hybrid carrier?

26 components, from 26 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 Handheld hybrid carrier design files?

From the gunnchOS3k/gunnchos-hardware-industrial-design 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 Handheld hybrid carrier design in my own project?

Yes, under the terms of its MIT license, which gunnchOS3k chose for the repository.

Can I test firmware for the Handheld hybrid carrier 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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