2 layers77.5 × 83 mm Project 2.0, the printed circuit board in 3D

Project 2.0

Size: 77.5 × 83 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 61
Nets: 71
Pads: 226
Tracks, vias: 340, 37
Pours: 1
Routed: Yes
KiCad: KiCad 9.0 (file 20241229)
Created: 8 May 2025
Updated: 14 May 2025

Overview

Project 2.0 is an open-source printed circuit board by changl21, from the changl21/ECE445 repository on GitHub. It is a 2-layer board of 77.5 × 83 mm with 61 parts on 71 nets, routed with 340 tracks and 37 vias.

It is built around the STM32F411RET6, USBLC6-2SC6Y and PESD3V3L1BA,115-ES, with the LTST-C190GKT, ECS-.327-12.5-34B-TR and ECS-80-20-4X among its other parts. Its parts include 20 capacitors, 10 connectors, 8 resistors, 3 diodes and 2 ICs. It belongs with the STM32 boards of this library.

Main components

README

README.md

ECE445

Parts

Qty	Value	Footprint	References
9	PESD3V3L1BA_115	PESD3V3:DIODE_PESD3V3L1BA_115_NEX-L	CR2, CR3, CR4, CR5, CR6, CR13, CR14, CR16, CR18
7	100n	Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	C1, C2, C3, C4, C5, C6, C7
4	20p	Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	C9, C10, C11, C12
4	MountingHole	MountingHole:MountingHole_3.2mm_M3	H1, H2, H3, H4
3	0.1u	Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	C8, C13, C15
3	10k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R1, R2, R3
3	10u	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C14, C19, C20
3	150	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R6, R7, R8
3	LTST-C190GKT	LTST_C190GKT:LED_LTST-C190CKT_LTO	LED1, LED2, LED3
2	1u	Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	C16, C18
2	222AMVBAR	222AMVBAR:SO4_222A-M-V-B_CTS	SW1, SW2
2	5.1k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R4, R5
1	4.7u	Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	C17
1	Debug UART	Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical	J9
1	Display	Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical	J6
1	Display EXT	Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical	J7
1	ECS-.327-12.5-34B-TR	ECS_327:XTAL_ECS-31B_ECS-L	XTAL1
1	ECS-80-20-4X	ECS_80:XTAL_ECS-80-20-4X	Y1
1	LD1117S33CTR	LD1117S33CTR:SOT-223_STM-L	CR1
1	MAX9815	Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical	J2
1	PDM MIC	Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical	J4
1	PDM MIC EXT	Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical	J5
1	Ras UART	Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical	J3
1	ST-Link	Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical	J10
1	STM32F411RET6	STM32F411RE6:QFP50P1200X1200X160-64N	U1
1	USBLC6-2SC6Y	USBLC6_2SC6Y:SOT23-6L_STM-L	U2
1	USB_C_Receptacle_USB2.0_16P	Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal	J11
1	VCC VCC GND GND	Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical	J8

Questions

How big is the Project 2.0 PCB?

It measures 77.5 × 83 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Project 2.0 use?

61 parts, built around the STM32F411RET6, USBLC6-2SC6Y, PESD3V3L1BA,115-ES and LTST-C190GKT. 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 Project 2.0 KiCad files?

From the changl21/ECE445 repository on GitHub, at the commit this page was made from: the board is ECE_445_PCB_3.0/ECE 445 Project 3.0/ECE 445 Project 2.0/Project 2.0.kicad_pcb and its schematic ECE_445_PCB_2.0/ECE 445 Project 2.0/Project 2.0.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Project 2.0 design in my own project?

Its repository states no licence, so its author keeps all rights: ask changl21 before reusing the design.

Category and platform

STM32

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/changl21-ece445-project-2-0" title="Project 2.0 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/changl21-ece445-project-2-0.jpg" alt="Project 2.0" width="1200" height="900">

A picture that opens the board, for a README

[![Project 2.0](https://pcbkit.io/embed/boards/changl21-ece445-project-2-0.jpg?size=s)](https://pcbkit.io/boards/changl21-ece445-project-2-0)

Source

Repository: changl21/ECE445
Board file: ECE_445_PCB_3.0/ECE 445 Project 3.0/ECE 445 Project 2.0/Project 2.0.kicad_pcb
Commit: 6fd4b10
Licence: Not stated

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