HardLabs

MBDSDR

HaohanHe·MBDSDR·ai-sdr-mini-kicad/ai-sdr-mini.kicad_pcb

MBDSDR PCB layout, top view — open source ESP32 board by HaohanHe

About the MBDSDR PCB

MBDSDR is an open source ESP32 PCB design by HaohanHe, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 76 × 56 mm, with 62 components from 27 distinct parts.

Its main chip is the ESP32-S3-WROOM-1-N8R8, from the ESP32 family. Other key parts include the USB2514B-AEZC, SI4732-A10-GSR, TMAG5273A1QDBVT, BMI260 and ATGM336H-5NR32-G. By type, the board carries 23 capacitors, 19 resistors, 7 ICs, 4 LEDs, 2 crystals and 1 connector.

It belongs with the rf & radio designs in this gallery.

Main components on the MBDSDR

USB2514B-AEZCSI4732-A10-GSRTMAG5273A1QDBVTESP32-S3-WROOM-1-N8R8BMI260ATGM336H-5NR32-GAMS1117-3.3

MBDSDR bill of materials (BOM)

62 components, 27 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
USB2514B-AEZC
U1
1
SI4732-A10-GSR
U2
1
TMAG5273A1QDBVT
U3
1
ESP32-S3-WROOM-1-N8R8
U4
1
BMI260
U5
1
ATGM336H-5NR32-G
U6
1
AMS1117-3.3
U7
1
32.768kHz
X1
1
24MHz
X2
1
TYPE-C-6P
J1
1
500mA
F1
1
SMA-F
RF1
1
UFL-F
RF2
1
TS-1101
SW1
1
USB-A-F
USB1
4
LED_YELLOW
LED1, LED2, LED3, LED4
1
100nH
L2
1
12pF
C1
16
100nF
C3, C4, C5, C6, C8, C10, C12, C13 +8
4
10uF
C7, C9, C11, C15
Show 7 more
QtyPartRefs
2
18pF
C17, C18
4
1k
R1, R2, R3, R4
3
4.7k
R5, R6, R19
7
10k
R7, R8, R11, R13, R14, R15, R16
2
5.1k
R9, R10
1
12k
R12
2
100k
R17, R18

MBDSDR design files

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

MBDSDR: common questions

What microcontroller does the MBDSDR use?

The MBDSDR is built around the ESP32-S3-WROOM-1-N8R8, from the ESP32 family.

How big is the MBDSDR PCB?

The MBDSDR measures 76 × 56 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the MBDSDR?

62 components, from 27 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 MBDSDR design files?

From the HaohanHe/MBDSDR 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 MBDSDR design in my own project?

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

Can I test firmware for the MBDSDR 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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