2 layers53 × 85 mm AcousticDetection HW, the printed circuit board in 3D

AcousticDetection HW

System for Acoustic Detection and Localization Based on Two Microphones

Size: 53 × 85 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 41
Nets: 61
Pads: 174
Tracks, vias: 305, 22
Pours: 3
Routed: Yes
KiCad: KiCad 7 (file 20221018)
Created: 4 Oct 2022
Updated: 9 Jan 2024

Overview

AcousticDetection HW is an open-source printed circuit board by matrn, from the matrn/AcousticDetection repository on GitHub, published under the MIT licence. It is a 2-layer board of 53 × 85 mm with 41 parts on 61 nets, routed with 305 tracks and 22 vias.

It is built around the ESP32-WROOM-32 and SPH0645LM4H-B. Its parts include 11 connectors, 10 capacitors, 9 resistors, 2 ICs and 2 diodes. It belongs with the ESP32 boards of this library.

Main components

README

AcousticDetection_HW/README.md

KiCad schematic and PCB layout of the AcousticDetection device

PCB 3D view

Directories

lib/ - additional KiCad libraries used for the PCB
gerber/ - gerber export ready for production, it containes single/ version where all three parts are in the same file and separated/ for three separated gerber files
FORMODEL-AcousticDetection_HW/ - copy of this main AcousticDetection_HW PCB files, used for the images export into final thesis. Do not use this for production.
plots/ - PDF plots of schematic & PCB layout

Parts

Qty	Value	Footprint	References
3	LOGO	LOGO	G*, G, G**
2	100nF	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C3, C6
2	100nF	Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	C9, C10
2	10uF	Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder	C4, C5
2	200pF	Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	C7, C8
2	220R	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R3, R4
2	51	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R8, R9
2	51	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R6, R7
2	5k1	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R1, R2
2	DATA_L	AcousticDetection_extras:DataConnector	J7, J8
2	DATA_R	AcousticDetection_extras:DataConnector	J11, J12
2	PWR_L	AcousticDetection_extras:PowerConnector	J5, J6
2	PWR_R	AcousticDetection_extras:PowerConnector	J9, J10
2	SPH0645LM4H-B	SPH0645LM4H-B:MIC_SPH0645LM4H-B	MK1-left1, MK2-right1
1	10k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R5
1	1uF	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C1
1	22uF	Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder	C2
1	BOOT	Button_Switch_SMD:SW_Tactile_SPST_NO_Straight_CK_PTS636Sx25SMTRLFS	SW2
1	EN	Button_Switch_SMD:SW_Tactile_SPST_NO_Straight_CK_PTS636Sx25SMTRLFS	SW1
1	ESP32-WROOM-32	RF_Module:ESP32-WROOM-32	U1
1	INFO	LED_SMD:LED_1206_3216Metric_Pad1.42x1.75mm_HandSolder	D2
1	JTAG	Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical	J4
1	LDL1117S33R_SOT223	Package_TO_SOT_SMD:SOT-223-3_TabPin2	U2
1	POWER	LED_SMD:LED_1206_3216Metric_Pad1.42x1.75mm_HandSolder	D1
1	UART	Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical	J3
1	USB_C_Receptacle_USB2.0	Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal	J1

Questions

How big is the AcousticDetection HW PCB?

It measures 53 × 85 mm and has 2 copper layers, 1.6 mm thick.

What parts does the AcousticDetection HW use?

41 parts, built around the ESP32-WROOM-32 and SPH0645LM4H-B. 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 AcousticDetection HW KiCad files?

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

Can I use the AcousticDetection HW design in my own project?

Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

Category and platform

ESP32

Topics

acoustic-detection esp32 tdoa acoustic-localization sph0645lm4h

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/matrn-acousticdetection" title="AcousticDetection HW 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/matrn-acousticdetection.jpg" alt="AcousticDetection HW" width="1200" height="900">

A picture that opens the board, for a README

[![AcousticDetection HW](https://pcbkit.io/embed/boards/matrn-acousticdetection.jpg?size=s)](https://pcbkit.io/boards/matrn-acousticdetection)

Source

Repository: matrn/AcousticDetection
Board file: AcousticDetection_HW/AcousticDetection_HW.kicad_pcb
Commit: 418b604
Licence: MIT
Copies: 2 copies in 1 repository

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