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Main control board

StarweaverAudioLabs·main_control_board

Main control board layout, top view — open source ESP32 board by StarweaverAudioLabs

About the Main control board

Main control board is an open source ESP32 PCB design by StarweaverAudioLabs, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 80 × 46 mm, with 40 components from 32 distinct parts.

Its main chip is the ESP32-S3-MINI-1U, from the ESP32 family. Other key parts include the AMS1117-3.3, TS3USB221ARSER, TSOP348XX and FSUSB74UMX. By type, the board carries 12 connectors, 7 resistors, 6 diodes, 6 capacitors, 5 ICs and 2 jumpers.

From the project

Main controller board for Haruto's DAC

Main components on the Main control board

ESP32-S3-MINI-1UAMS1117-3.3TS3USB221ARSERTSOP348XXFSUSB74UMX

Main control board bill of materials (BOM)

40 components, 32 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-S3-MINI-1U
U1
1
AMS1117-3.3
U2
1
TS3USB221ARSER
U3
1
TSOP348XX
TSOP348xx
U4
1
FSUSB74UMX
U5
1
C165948
USB1/PWR IN
J1
1
USB_Out
J2
1
USB2/PWR IN
J3
1
USB_3
J4
1
USB_4
J5
1
I2C
J6
1
Display
J7
1
Motorized Pot
J8
1
Tx/Rx
J9
1
GPIOs
J10
1
EXT_PWR
J11
1
PROG MODE
J12
1
5V
JP1
1
GND
JP2
1
PTS810SJK250SMTRLFS
RST
S1
Show 12 more
QtyPartRefs
1
PTS810SJK250SMTRLFS
BOOT
S2
2
1N5819HW-7-F
D1, D5
3
LESD5D5.0CT1G
D2, D3, D4
1
SK6812
D6
2
10UF
10uF
C1, C4
2
0.1UF
0.1uF
C2, C5
1
1UF
1uF
C3
1
100UF
100uF
C6
2
5.1K
R1, R3
1
200R
UNI-ROYAL(Uniroyal Elec)
R2
2
10K
10k
R4, R5
2
4.7K
R6, R7

Main control board design files

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

Main control board: common questions

What microcontroller does the Main control board use?

The Main control board is built around the ESP32-S3-MINI-1U, from the ESP32 family.

How big is the Main control board?

The Main control board measures 80 × 46 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Main control board?

40 components, from 32 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 Main control board design files?

From the StarweaverAudioLabs/main_control_board 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 Main control board design in my own project?

Yes, under the terms of its GPL-3.0 license, which StarweaverAudioLabs chose for the repository.

Can I test firmware for the Main control board 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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