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ESP-32-DSP board

MarkusVLA·Suunnattava-suuntamikrofoni·pcb/ESP-32-DSP_board/ESP-32-DSP_board.kicad_pcb

ESP-32-DSP board layout, top view — open source ESP32 board by MarkusVLA

About the ESP-32-DSP board

ESP-32-DSP board is an open source ESP32 PCB design by MarkusVLA, published on GitHub. It is a 4-layer board measuring 58.2 × 74.6 mm, with 71 components from 33 distinct parts.

Its main chip is the ESP32-S3FH4R2, from the ESP32 family. Other key parts include the AZ1117IH-3.3, AD5689BRUZ, USBLC6-2P6, LM386 and ADS8688. By type, the board carries 38 capacitors, 9 resistors, 8 connectors, 6 ICs, 3 inductors and 2 switches.

From the project

Suunnattava suuntamikrofoni on laite, jolla voidaan elektronisesti ohjata äänityksen suuntaa käännettävän suuntauksen avulla. Laite koostuu kahdesta piirikortista: Ensimmäinen piirikortti sisältää kuuden mikrofonin ryhmän, josta luetaan dataa. Toinen piirikortti hoitaa signaalink

Suunnattava suuntamikrofoni on laite, jolla voidaan elektronisesti ohjata äänityksen suuntaa käännettävän suuntauksen avulla. Laite koostuu kahdesta piirikortista: Ensimmäinen piirikortti sisältää kuuden mikrofonin ryhmän, josta luetaan dataa. Toinen piirikortti hoitaa signaalinkäsittelyn ja laitteen ohjauksen ESP32-S3-mikro-ohjaimeen perustuvalla järjestelmällä.

ESP-32-DSP board, from the project README
From the project README

Main components on the ESP-32-DSP board

AZ1117IH-3.3AD5689BRUZUSBLC6-2P6LM386ADS8688ESP32-S3FH4R2

ESP-32-DSP board bill of materials (BOM)

71 components, 33 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
AZ1117IH-3.3
U1
1
AD5689BRUZ
U2
1
USBLC6-2P6
U3
1
LM386
U4
1
ADS8688
U5
1
ESP32-S3FH4R2
U6
1
40MHZ
40MHz
Y1
1
USB_C_RECEPTACLE_USB2.0
USB_C_Receptacle_USB2.0
J1
1
Conn_01x10_Pin
J2
3
Conn_01x08_Pin
J4, J6, J7
1
SD_Card
J5
1
AUDIOJACK3
AudioJack3
J8
1
Conn_Coaxial
J12
1
SOLDERJUMPER_2_BRIDGED
SolderJumper_2_Bridged
JP1
2
10K
10k
RV1, RV2
1
Reset
SW1
1
Boot
SW2
1
LED
D1
3
2.2N
2.2n
L1, L2, L4
2
22U
22u
C1, C17
Show 13 more
QtyPartRefs
7
10U
10u
C2, C7, C8, C10, C29, C38, C39
12
100N
100n
C3, C4, C6, C9, C11, C12, C14, C15 +4
1
250U
250u
C5
1
4.7U
4.7u
C13
3
1u
C16, C18, C30
8
1n
C19, C20, C21, C22, C23, C24, C25, C26
2
3.3P
3.3p
C27, C28
2
12P
12p
C33, C34
2
10K
10k
R1, R13
1
1k
R3
3
4.7K
4.7k
R5, R8, R9
2
5.1K
5.1k
R6, R7
1
10
R14

ESP-32-DSP board design files

The KiCad project lives in the MarkusVLA/Suunnattava-suuntamikrofoni repository on GitHub; these links point at the commit this page was built from.

ESP-32-DSP board: common questions

What microcontroller does the ESP-32-DSP board use?

The ESP-32-DSP board is built around the ESP32-S3FH4R2, from the ESP32 family.

How big is the ESP-32-DSP board?

The ESP-32-DSP board measures 58.2 × 74.6 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the ESP-32-DSP board?

71 components, from 33 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 ESP-32-DSP board design files?

From the MarkusVLA/Suunnattava-suuntamikrofoni 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 ESP-32-DSP board design in my own project?

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

Can I test firmware for the ESP-32-DSP 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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