4 layers71 × 83.3 mm STM SHIELD, the printed circuit board in 3D

STM SHIELD

bachelor's theses

Size: 71 × 83.3 mm
Copper layers: 4
Thickness: 1.6 mm
Parts: 86
Nets: 126
Pads: 308
Tracks, vias: 409, 57
Pours: 3
Routed: Yes
KiCad: KiCad 9.0 (file 20241229)
Created: 2 Jun 2026
Updated: 26 Oct 2026

Overview

STM SHIELD is an open-source printed circuit board by Thoric16, from the Thoric16/bakalarka repository on GitHub. It is a 4-layer board of 71 × 83.3 mm with 86 parts on 126 nets, routed with 409 tracks and 57 vias.

It is built around the ADA4807-2ARM and LM27762DSS. Its parts include 35 resistors, 11 capacitors, 7 diodes, 6 ICs and 3 connectors.

Main components

Parts

Qty	Value	Footprint	References
23	TestPoint	TestPoint:TestPoint_Pad_D1.0mm	TP1, TP2, TP10, TP11, TP12, TP13, TP14, TP15, TP16, TP17, TP18, TP19, TP20, TP21, TP22, TP23 +7
7	470	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R28, R29, R30, R31, R32, R33, R34
7	LED	LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder	D1, D2, D3, D4, D5, D6, D7
4	0	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R6, R7, R26, R27
4	2k7	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R9, R12, R16, R17
4	47k	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R8, R13, R18, R19
4	DNP	Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	C6, C7, C8, C9
3	DNP	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R24, R25, R35
2	1.5k	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R10, R14
2	100n	Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	C10, C11
2	11k	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R11, R15
2	2.2u	Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	C3, C4
2	30k	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R20, R21
2	3k9	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R22, R23
2	ADA4807-2ARM	Package_SO:MSOP-8_3x3mm_P0.65mm	U2, U6
2	ADG619	Package_SO:MSOP-8_3x3mm_P0.65mm	U3, U4
1	10k	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R1
1	130k	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R4
1	160k	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R2
1	1u	Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	C1
1	4,7-10u	Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	C2
1	4.7u	Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	C5
1	75k	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R5
1	91k	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R3
1	Conn_01x08_Socket	Connector_PinSocket_2.54mm:PinSocket_1x08_P2.54mm_Vertical	J3
1	LM27762	Package_SON:WSON-12-1EP_3x2mm_P0.5mm_EP1x2.65_ThermalVias	U5
1	NUCLEO-F446RE	Custom:MODULE_NUCLEO-F446RE	U1
1	SMA_I	Connector_Coaxial:SMA_Samtec_SMA-J-P-H-ST-EM1_EdgeMount	J1
1	SMA_Q	Connector_Coaxial:SMA_Samtec_SMA-J-P-H-ST-EM1_EdgeMount	J2

The 85 most common of 86 parts.

Questions

How big is the STM SHIELD PCB?

It measures 71 × 83.3 mm and has 4 copper layers, 1.6 mm thick.

What parts does the STM SHIELD use?

86 parts, built around the ADA4807-2ARM and LM27762DSS. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the STM SHIELD KiCad files?

From the Thoric16/bakalarka repository on GitHub, at the commit this page was made from: the board is STM_QAM_GENERATOR/STM_SHIELD/STM_SHIELD.kicad_pcb and its schematic STM_QAM_GENERATOR/STM_SHIELD/STM_SHIELD.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the STM SHIELD design in my own project?

Its repository states no licence, so its author keeps all rights: ask Thoric16 before reusing the design.

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/thoric16-bakalarka" title="STM SHIELD in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/boards/thoric16-bakalarka.jpg" alt="STM SHIELD" width="1200" height="900">

A picture that opens the board, for a README

[![STM SHIELD](https://pcbkit.io/embed/boards/thoric16-bakalarka.jpg?size=s)](https://pcbkit.io/boards/thoric16-bakalarka)

Source

Repository: Thoric16/bakalarka
Board file: STM_QAM_GENERATOR/STM_SHIELD/STM_SHIELD.kicad_pcb
Commit: 1b758d3
Licence: Not stated

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