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Hoerbaer

drachosaurus·hoerbaer·Hardware/Hoerbaer/Hoerbaer.kicad_pcb

Hoerbaer PCB layout, top view — open source ESP32 board by drachosaurus

About the Hoerbaer PCB

Hoerbaer is an open source ESP32 PCB design by drachosaurus, published on GitHub. It is a 4-layer board measuring 76 × 88 mm, with 195 components from 60 distinct parts.

Its main chip is the ESP32-S3-WROOM-1-N4R8, from the ESP32 family. Other key parts include the PCF8574APWR, TLC59108IPWR, BQ24073RGTR, MAX17048G+T10 and TPS63001DRCR. By type, the board carries 74 resistors, 64 capacitors, 15 connectors, 14 ICs, 12 diodes and 7 inductors.

From the project

Hör Bär (v2)

Main components on the Hoerbaer

ESP32-S3-WROOM-1-N4R8PCF8574APWRTLC59108IPWRBQ24073RGTRMAX17048G+T10TPS63001DRCRTPS61288RQQRTAS5805MPWPRCH343PTPS22810DRVR

Hoerbaer bill of materials (BOM)

195 components, 60 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-S3-WROOM-1-N4R8
U1
3
PCF8574APWR
U2, U3, U4
3
TLC59108IPWR
TLC59108xPW
U5, U6, U7
1
BQ24073RGTR
BQ24073RGT
U8
1
MAX17048G+T10
MAX17048G
U9
1
TPS63001DRCR
TPS63001
U10
1
TPS61288RQQR
TPS61288
U11
1
TAS5805MPWPR
TAS5805M
U12
1
CH343P
U13
1
TPS22810DRVR
TPS22810DRV
U14
2
SS8050
S8050
Q1, Q2
1
I2C
J1
1
DM3D-SF
uSD
J2
1
TYPE-C 16PIN 2MD(073) Copy
USB1
J3
1
USB1
DISPLAY
J4
1
DNP
UART
J5
1
DNP
ENCODER
J7
1
DNP
PAW_A
J8
1
DNP
PAW_B
J9
1
PAW_C
J10
Show 40 more
QtyPartRefs
1
DNP
PAW_D
J11
1
TS
J13
1
B2B-XH-A(LF)(SN)
Battery 1S Li-Ion
J14
1
WJ500V-5.08-2P
Speaker_L
J16
1
WJ500V-5.08-2P
Speaker_R
J17
1
TYPE-C 16PIN 2MD(073) Copy
USB2_UART
J18
1
CH_TX
JP6
1
CH_RX
JP7
2
~{RST}
JP8, JP16
1
IO0
JP9
1
TS-1088-AR02016
RESET
SW1
1
TS-1088-AR02016
PROG
SW2
7
LESD5D5.0CT1G
D1, D2, D3, D8, D9, D10, D12
1
XL-1608UWC-04
YELLOW
D4
3
SS54BF
D5, D7, D11
1
XL-1608UGC-04
GREEN
D6
1
PZ2012D101-3R0TF
100Ω@100MHz, 3A
FB1
4
PZ3216D300-3R0TF
300Ω@100MHz, 3A
FB2, FB3, FB4, FB5
1
SWPA8040S5R6NT
5.6uH, 3.85A
L1
1
LQH3NPN2R2MJRL
2.2µH
L2
8
CL05A105KO5NNNC
1µF, 16V
C1, C4, C5, C19, C27, C35, C42, C43
11
CGA0805X7R106K250MT
10µF
C2, C3, C7, C8, C9, C10, C20, C22 +3
18
CL05B104KO5NNNC
100nF
C6, C11, C12, C13, C14, C15, C16, C18 +10
2
C2012X7R1A475KT0J0E
4.7µF, 10V
C21, C62
1
CL05B472KB5NNNC
4.7nF
C29
2
CL05C270JB5NNNC
27pF
C30, C31
7
CGA1210X7R226K250RT
22µF, low ESR
C37, C38, C39, C44, C45, C51, C52
9
CL05B222KB5NNNC
2.2nF
C40, C53, C54, C55, C56, C58, C59, C60 +1
4
TCC0402X7R224K250AT
220nF
C47, C48, C49, C50
2
CL05A105KO5NNNC
1uF
C63, C64
49
0402WGF1002TCE
10kΩ
R1, R2, R3, R4, R7, R8, R9, R10 +41
6
0402WGF5101TCE
5.1kΩ
R5, R6, R49, R51, R64, R65
6
0402WGF1001TCE
1kΩ
R43, R44, R45, R71, R72, R73
3
0402WGF1131TCE
1.13kΩ
R50, R52, R74
2
0402WGF1000TCE
100Ω
R54, R69
1
RC0402FR-07140KL
140kΩ
R55
1
0402WGF4702TCE
47kΩ
R57
1
0402WGF4701TCE
4.7kΩ
R59
4
0402WGF680JTCE
68Ω
R60, R61, R62, R63
1
RC0402FR-0791KL
91kΩ
R68

Hoerbaer design files

The KiCad project lives in the drachosaurus/hoerbaer repository on GitHub; these links point at the commit this page was built from.

Hoerbaer: common questions

What microcontroller does the Hoerbaer use?

The Hoerbaer is built around the ESP32-S3-WROOM-1-N4R8, from the ESP32 family.

How big is the Hoerbaer PCB?

The Hoerbaer measures 76 × 88 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Hoerbaer?

195 components, from 60 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Hoerbaer design files?

From the drachosaurus/hoerbaer repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Hoerbaer design in my own project?

The repository has no license, so all rights stay with drachosaurus. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Hoerbaer without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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