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4 layers52.4 × 55.1 mmSpeaker, the printed circuit board in 3D

Speaker

john-denny/Speaker-PCB

The PCB design for the speaker

Open in PCBKitView on GitHub.kicad_pcb
Size
52.4 × 55.1 mm
Copper layers
4
Thickness
1.6 mm
Parts
92
Nets
83
Pads
333
Tracks, vias
586, 132
Pours
2
Routed
Yes
KiCad
KiCad 9.0 (file 20241229)
Created
28 Aug 2026
Updated
24 Oct 2026

Overview

Speaker is an open-source printed circuit board by john-denny, from the john-denny/Speaker-PCB repository on GitHub. It is a 4-layer board of 52.4 × 55.1 mm with 92 parts on 83 nets, routed with 586 tracks and 132 vias.

It is built around the ESP32-WROOM-32, MCP73871EV and CH340X, with the USBLC6-2SC6 and UJ20-C-H-G-SMT-1-P16-TR among its other parts. Its parts include 32 resistors, 18 capacitors, 7 ICs, 7 diodes and 5 switches. It belongs with the audio and music boards and the ESP32 boards of this library.

Main components

5

Parts

92
QtyValueFootprintReferences
110Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR2, R4, R5, R18, R20, R22, R24, R26, R29, R30, R31
7100nFCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC5, C8, C11, C12, C13, C16, C17
7LEDLED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolderD1, D2, D3, D4, D5, D6, D7
510kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR10, R16, R25, R28, TH1
5RResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR17, R19, R21, R23, R27
4MountingHoleMountingHole:MountingHole_2.2mm_M2_Pad_ViaH1, H2, H3, H4
31uFCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC4, C7, C10
34.7kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR7, R8, R9
20.1uFCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC1, C14
2100pFCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC6, C9
24.7uFCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC2, C3
25.1kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR14, R15
2TP_DINTestPoint:TestPoint_Pad_D1.5mmTP13, TP14
2~Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR12, R13
110uFCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC15
1110kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR3
11kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR6
11nFCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC18
1330kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR1
1470Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR11
1Battery_CellConnector_JST:JST_PH_S2B-PH-K_1x02_P2.00mm_HorizontalBT1
1CH340XPackage_SO:MSOP-10_3x3mm_P0.5mmU5
1ESP32-WROOM-32RF_Module:ESP32-WROOM-32U6
1LT1963AxST-3.3Package_TO_SOT_SMD:SOT-223-3_TabPin2U3
1MAX17048G_T10MAX17048G_T10:SON50P200X200X80-9NU1
1MAX98357APackage_DFN_QFN:TQFN-16-1EP_3x3mm_P0.5mm_EP1.23x1.23mmU7
1MCP73871Package_DFN_QFN:QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mmU2
1Play/PauseButton_Switch_SMD:SW_SPST_B3U-1000PSW4
1Power SwitchButton_Switch_SMD:SW_SPST_B3U-1000PSW5
1SW_PushButton_Switch_SMD:SW_SPST_B3U-1000PSW1
1SpeakerConnector_JST:JST_PH_S2B-PH-K_1x02_P2.00mm_HorizontalLS1
1TP_BCLKTestPoint:TestPoint_Pad_D1.5mmTP15
1TP_ChargingTestPoint:TestPoint_Pad_D1.5mmTP5
1TP_D+TestPoint:TestPoint_Pad_D1.5mmTP10
1TP_D-TestPoint:TestPoint_Pad_D1.5mmTP9
1TP_FG_ALRTTestPoint:TestPoint_Pad_D1.5mmTP3
1TP_FG_SCLTestPoint:TestPoint_Pad_D1.5mmTP2
1TP_FG_SDATestPoint:TestPoint_Pad_D1.5mmTP4
1TP_UART_RXTestPoint:TestPoint_Pad_D1.5mmTP11
1TP_UART_TXTestPoint:TestPoint_Pad_D1.5mmTP12
1TP_VBAT+TestPoint:TestPoint_Pad_D1.5mmTP8
1TP_VDDTestPoint:TestPoint_Pad_D1.5mmTP7
1TP_VREG3.3TestPoint:TestPoint_Pad_D1.5mmTP6
1TP_VSYSTestPoint:TestPoint_Pad_D1.5mmTP1
1TP_VSYS_LDOTestPoint:TestPoint_Pad_D1.5mmTP_VSYS_LDO1
1UJ20-C-H-G-SMT-1-P16-TRUJ20-C-H-G-SMT-1-P16-TR:SAMESKY_UJ20-C-H-G-SMT-1-P16-TRJ1
1USBLC6-2SC6Package_TO_SOT_SMD:SOT-23-6U4
1Volume DownButton_Switch_SMD:SW_SPST_B3U-1000PSW3
1Volume UpButton_Switch_SMD:SW_SPST_B3U-1000PSW2

Questions

How big is the Speaker PCB?

It measures 52.4 × 55.1 mm and has 4 copper layers, 1.6 mm thick.

What parts does the Speaker use?

92 parts, built around the ESP32-WROOM-32, MCP73871EV, CH340X and USBLC6-2SC6. 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 Speaker KiCad files?

From the john-denny/Speaker-PCB repository on GitHub, at the commit this page was made from: the board is Speaker.kicad_pcb and its schematic Speaker.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Speaker design in my own project?

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

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