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4 layers76 × 88 mmHoerbaer, the printed circuit board in 3D

Hoerbaer

drachosaurus/hoerbaer1

Hör Bär (v2)

Full screenGitHub.kicad_pcb
Size
76 × 88 mm
Copper layers
4
Thickness
1.6 mm
Parts
233
Nets
186
Pads
957
Tracks, vias
2,325, 421
Pours
20
Routed
Yes
KiCad
KiCad 9.0 (file 20241229)
Created
12 Nov 2023
Updated
30 Dec 2025

Overview

Hoerbaer is an open-source printed circuit board by drachosaurus, from the drachosaurus/hoerbaer repository on GitHub. It is a 4-layer board of 76 × 88 mm with 233 parts on 186 nets, routed with 2,325 tracks and 421 vias.

It is built around the ESP32-S3-WROOM-1-N4R8, PCF8574APWR and CH343P, with the TAS5805MPWP, TPS61288RQQR and TPS63001DRC among its other parts. Its parts include 74 resistors, 64 capacitors, 15 connectors, 14 ICs and 11 diodes. It belongs with the ESP32 boards of this library.

Main components

12

Parts

233
QtyValueFootprintReferences
4910kΩResistor_SMD:R_0402_1005MetricR1, R2, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23 +33
18100nFCapacitor_SMD:C_0402_1005MetricC6, C11, C12, C13, C14, C15, C16, C18, C24, C25, C26, C33, C34, C41, C46, C57 +2
1110µFCapacitor_SMD:C_0805_2012MetricC2, C3, C7, C8, C9, C10, C20, C22, C23, C28, C32
92.2nFCapacitor_SMD:C_0402_1005MetricC40, C53, C54, C55, C56, C58, C59, C60, C61
81µF, 16VCapacitor_SMD:C_0402_1005MetricC1, C4, C5, C19, C27, C35, C42, C43
8GNDsBaer_Footprints:NetTie-2_ViaNT1, NT3, NT4, NT7, NT8, NT12, NT13, NT14
722µF, low ESRCapacitor_SMD:C_1210_3225MetricC37, C38, C39, C44, C45, C51, C52
7LESD5D5.0CT1GDiode_SMD:D_SOD-523D1, D2, D3, D8, D9, D10, D12
61kΩResistor_SMD:R_0402_1005MetricR43, R44, R45, R71, R72, R73
65.1kΩResistor_SMD:R_0402_1005MetricR5, R6, R49, R51, R64, R65
5LOGOLOGOG***, G***, G***, G***, G***
4220nFCapacitor_SMD:C_0402_1005MetricC47, C48, C49, C50
4300Ω@100MHz, 3AInductor_SMD:L_1206_3216MetricFB2, FB3, FB4, FB5
468ΩResistor_SMD:R_0402_1005MetricR60, R61, R62, R63
31.13kΩResistor_SMD:R_0402_1005MetricR50, R52, R74
320mAJumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mmJP13, JP14, JP15
3MountingHole_PadMountingHole:MountingHole_3.2mm_M3_Pad_ViaH1, H2, H3
3PCF8574APWRPackage_SO:SSOP-20_4.4x6.5mm_P0.65mmU2, U3, U4
3SS54BFBaer_Footprints:SS54BFD5, D7, D11
3TLC59108xPWPackage_SO:TSSOP-20_4.4x6.5mm_P0.65mmU5, U6, U7
2100ΩResistor_SMD:R_0402_1005MetricR54, R69
21uFCapacitor_SMD:C_0402_1005MetricC63, C64
227pFCapacitor_SMD:C_0402_1005MetricC30, C31
24.7µF, 10VCapacitor_SMD:C_0805_2012MetricC21, C62
2S8050Package_TO_SOT_SMD:SOT-23Q1, Q2
2~{RST}Jumper:SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mmJP8, JP16
1+9VTestPoint:TestPoint_Pad_D1.5mmTP9
1100Ω@100MHz, 3AInductor_SMD:L_0805_2012MetricFB1
1140kΩResistor_SMD:R_0402_1005MetricR55
12.2µHBaer_Footprints:L_Murata_LQH3NPNL2
13V3_~{PSAVE}TestPoint:TestPoint_Pad_D1.5mmTP1
14.7kΩResistor_SMD:R_0402_1005MetricR59
14.7nFCapacitor_SMD:C_0402_1005MetricC29
147kΩResistor_SMD:R_0402_1005MetricR57
15.6uH, 3.85AInductor_SMD:L_Sunlord_SWPA8040SL1
191kΩResistor_SMD:R_0402_1005MetricR68
19V_ENTestPoint:TestPoint_Pad_D1.5mmTP2
1BAT_~{ALRT}TestPoint:TestPoint_Pad_D1.5mmTP3
1BQ24073RGTPackage_DFN_QFN:VQFN-16-1EP_3x3mm_P0.5mm_EP1.6x1.6mmU8
1Battery 1S Li-IonConnector_JST:JST_XH_B2B-XH-AM_1x02_P2.50mm_VerticalJ14
1Battery 1S Li-IonConnector_Wire:SolderWire-0.5sqmm_1x02_P4.6mm_D0.9mm_OD2.1mmJ15
1CH343PPackage_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.45x1.45mm_ThermalViasU13
1CHG_PGOODTestPoint:TestPoint_Pad_D1.5mmTP5
1CHG_STATTestPoint:TestPoint_Pad_D1.5mmTP4
1CH_RXJumper:SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mmJP7
1CH_TXJumper:SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mmJP6
1DISPLAYConnector_PinHeader_2.54mm:PinHeader_1x07_P2.54mm_VerticalJ4
1EN1Jumper:SolderJumper-3_P1.3mm_Bridged12_RoundedPad1.0x1.5mmJP2
1EN2Jumper:SolderJumper-3_P1.3mm_Bridged12_RoundedPad1.0x1.5mmJP1
1ENCODERConnector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_VerticalJ7
1ESP32-S3-WROOM-1-N4R8RF_Module:ESP32-S3-WROOM-1U1
1FIX_TSJumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mmJP5
1GREENLED_SMD:LED_0603_1608MetricD6
1I2CConnector_PinHeader_2.54mm:PinHeader_2x02_P2.54mm_VerticalJ1
1IO0Jumper:SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mmJP9
1MAX17048GBaer_Footprints:TDFN-8-1EP_MAXIMU9
1MONO_AJumper:SolderJumper-3_P1.3mm_Bridged12_RoundedPad1.0x1.5mmJP12
1MONO_BJumper:SolderJumper-3_P1.3mm_Bridged12_RoundedPad1.0x1.5mmJP11
1PAW_AConnector_PinHeader_2.54mm:PinHeader_2x12_P2.54mm_VerticalJ8
1PAW_BConnector_PinHeader_2.54mm:PinHeader_2x12_P2.54mm_VerticalJ9
1PAW_CConnector_PinHeader_2.54mm:PinHeader_2x12_P2.54mm_VerticalJ10
1PAW_DConnector_PinHeader_2.54mm:PinHeader_2x12_P2.54mm_VerticalJ11
1PROGBaer_Footprints:SW_ TS-1088-AR02016SW2
1RESETBaer_Footprints:SW_ TS-1088-AR02016SW1
1SW_VINTestPoint:TestPoint_Pad_D1.5mmTP7
1Speaker_LTerminalBlock:TerminalBlock_bornier-2_P5.08mmJ16
1Speaker_RTerminalBlock:TerminalBlock_bornier-2_P5.08mmJ17
1TAS5805MPackage_SO:HTSSOP-28-1EP_4.4x9.7mm_P0.65mm_EP2.85x5.4mm_ThermalViasU12
1TDJumper:SolderJumper-3_P1.3mm_Bridged12_RoundedPad1.0x1.5mmJP3
1TMRJumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mmJP4
1TPS22810DRVPackage_SON:WSON-6-1EP_2x2mm_P0.65mm_EP1x1.6mm_ThermalViasU14
1TPS61288Package_DFN_QFN:Texas_VQFN-HR-20_3x2.5mm_P0.5mm_RQQ0011AU11
1TPS63001Package_SON:Texas_DRC0010J_ThermalViasU10
1TSConnector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_VerticalJ13
1UARTConnector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_VerticalJ5
1USB1Baer_Footprints:USB_C_Receptacle_HRO_TYPE-C-31-M-12J3
1USB2_UARTBaer_Footprints:USB_C_Receptacle_HRO_TYPE-C-31-M-12J18
1VJumper:SolderJumper-3_P1.3mm_Bridged12_RoundedPad1.0x1.5mmJP10
1VCCTestPoint:TestPoint_Pad_D1.5mmTP8
1VCC_P_ENTestPoint:TestPoint_Pad_D1.5mmTP10

The 230 most common of 233 parts.

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Questions

How big is the Hoerbaer PCB?

It measures 76 × 88 mm and has 4 copper layers, 1.6 mm thick.

What parts does the Hoerbaer use?

233 parts, built around the ESP32-S3-WROOM-1-N4R8, PCF8574APWR, CH343P and TAS5805MPWP. 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 Hoerbaer KiCad files?

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

Can I use the Hoerbaer design in my own project?

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