HardLabs

Bluetooth Box V3

zOnlyKroks·pcb-consortium·Bluetooth Box V3/Bluetooth Box V3.kicad_pcb

Bluetooth Box V3 PCB layout, top view — open source ESP32 board by zOnlyKroks

About the Bluetooth Box V3 PCB

Bluetooth Box V3 is an open source ESP32 PCB design by zOnlyKroks, published on GitHub under the CC0-1.0 license. It is a 4-layer board measuring 64.5 × 74.8 mm, with 119 components from 42 distinct parts.

Its main chip is the ESP32-WROOM-32E-R2, from the ESP32 family. Other key parts include the PAM8620TR, PCM1862DBT, AD8606ARM, AMS1117-1.8 and CH340G. By type, the board carries 66 capacitors, 29 resistors, 8 ICs, 8 connectors, 3 crystals and 3 switches.

It belongs with the iot & wireless designs in this gallery.

Main components on the Bluetooth Box V3

PAM8620TRPCM1862DBTAD8606ARMAMS1117-1.8ESP32-WROOM-32E-R2CH340GADAU1701AZ1117-3.3

Bluetooth Box V3 bill of materials (BOM)

119 components, 42 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
PAM8620TR
IC1
1
PCM1862DBT
U2
1
AD8606ARM
U3
1
AMS1117-1.8
U4
1
ESP32-WROOM-32E-R2
U5
1
CH340G
U6
1
ADAU1701
U7
1
AZ1117-3.3
U8
1
SS8050
Q1
2
CRYSTAL_GND24
Crystal_GND24
Y1, Y2
1
C9002
12 MHz
Y3
1
USB_C_RECEPTACLE_USB2.0
USB_C_Receptacle_USB2.0
J1
1
C8465
5V Screw
J2
3
C492400
GND
J3, J4, J10
1
C8465
12V Screw
J5
1
C8465
Woofer
J7
1
C8465
Tweeter
J8
1
C2150
NPN
SS8050
1
BOOT
SW1
2
KH-6X6X5H-STM
SW2, SW3
Show 22 more
QtyPartRefs
15
100 nF
C1, C2, C14, C42, C43, C44, C45, C46 +7
6
12 pF
C3, C12, C13, C15, C54, C59
2
150 pF
C4, C8
2
470 pF
C5, C9
2
47 uF
C6, C10
3
3.3 nF
C7, C11, C39
1
1 uF
C16
17
1 uF
C25, C51, C60, C61, C63, C64, C65, C67 +9
17
10 uF
C31, C33, C34, C35, C36, C41, C47, C49 +9
1
56 nF
C38
2
5.1K
5.1k
R1, R2
2
22
R3, R4
4
C17414
10k Ohm
R6, R16, R17, R30
4
4.75 kΩ
R7, R8, R11, R12
2
604 Ω
R9, R13
2
49.9 kΩ
R10, R14
6
10 kΩ
R15, R18, R24, R25, R27, R28
1
91 kΩ
R19
1
475 Ω
R20
1
100 Ω
R21
2
2.2 kΩ
R22, R23
2
10K
10k
R26, R29

Bluetooth Box V3 design files

The KiCad project lives in the zOnlyKroks/pcb-consortium repository on GitHub; these links point at the commit this page was built from.

Bluetooth Box V3: common questions

What microcontroller does the Bluetooth Box V3 use?

The Bluetooth Box V3 is built around the ESP32-WROOM-32E-R2, from the ESP32 family.

How big is the Bluetooth Box V3 PCB?

The Bluetooth Box V3 measures 64.5 × 74.8 mm, has 4 copper layers and is 1.647165 mm thick.

How many components are on the Bluetooth Box V3?

119 components, from 42 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 Bluetooth Box V3 design files?

From the zOnlyKroks/pcb-consortium 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 Bluetooth Box V3 design in my own project?

Yes, under the terms of its CC0-1.0 license, which zOnlyKroks chose for the repository.

Can I test firmware for the Bluetooth Box V3 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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