HardLabs

SDR-IoT-Board

Patricknmaina·SDR-IoT-Board·IoT-Edge-Device-v1.0/IoT Edge Device V1.kicad_pcb

SDR-IoT-Board layout, top view — open source ESP32 board by Patricknmaina

About the SDR-IoT-Board

SDR-IoT-Board is an open source ESP32 PCB design by Patricknmaina, published on GitHub under the MIT license. It is a 4-layer board measuring 75.5 × 82.7 mm, with 86 components from 44 distinct parts.

Its main chip is the ESP32-S3-WROOM-1-N16R8, from the ESP32 family. Other key parts include the C347222, LM7805, C181692, C90039 and DHT11. By type, the board carries 25 capacitors, 19 resistors, 14 connectors, 14 diodes, 8 ICs and 3 switches.

It belongs with the rf & radio, iot & wireless and power & battery designs in this gallery.

From the project

An IoT-based Ground Station integrated with a 1U Nanosatellite for transmission and receiving of telemetry and mission data

An IoT-based edge device and ground-station platform designed for telemetry and mission data—integrated with a 1U nanosatellite workflow. The hardware centers on an ESP32‑S3 module with LoRa, microSD storage, battery management/charging, sensor interfaces, and multiple expansion headers for rapid prototyping and deployment.

- Overview - Key Features - Hardware Architecture - Power Architecture - Interfaces and Connectors - Major Components - Project Structure - Manufacturing (Gerbers, BOM, CPL) - Bring‑Up Checklist - Firmware Getting Started - Mechanical and 3D Models - License -…

SDR-IoT-Board, from the project README
From the project README

Main components on the SDR-IoT-Board

C347222LM7805C181692C90039DHT11C92489

SDR-IoT-Board bill of materials (BOM)

86 components, 44 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
C347222
AMS1117-3.3
U1
3
LM7805
U2, U3, U4
1
C181692
IP5306
U5
1
C90039
Ai-Thinker-Ra-02
U6
1
DHT11
U7
1
C92489
BME280
U8
1
ESP32-S3-WROOM-1-N16R8
X1
1
WE-XTAL_85SMX
Y1
1
C2894326
USB_B_Micro
J1
1
Conn_01x06_Pin
J2
5
Conn_01x04_Pin
J3, J4, J5, J7, J8
2
Conn_01x03_Pin
J6, J16
3
Conn_01x02_Pin
J11, J12, J13
1
Conn_01x02_Pin
J14
1
C719027
Micro_SD_Card
J15
3
SW_Push
SW1, SW2, SW3
1
C965799
LED
D1
1
C7074
SP0503BAHT
D2
2
DFLS130L-7
D3, D17
4
C110493
DFLS130L-7
D4, D5, D6, D7
Show 24 more
QtyPartRefs
1
C965799
25%
D8
1
C965799
50%
D9
1
C965799
75%
D10
1
C22371297
100%
D11
1
C965807
LED
D12
1
C22371297
LED
D13
1
C531288
1uH
L1
5
C59461
22uF
C1, C5, C18, C19, C20
10
C14663
0u1F
C2, C8, C9, C11, C13, C15, C21, C22 +2
3
C19702
10uF
C4, C16, C17
2
C1634
10pF
C6, C7
3
C3039642
0u33F
C10, C12, C14
1
C5116073
22uF/16V
C23
1
C15849
1uF
C25
1
C11702
1k
R1
6
C25744
10k
R2, R10, R12, R13, R14, R19
1
C25744
2R
R3
1
C11702
1R
R4
1
C11702
20R
R5
1
C2906922
10k
R6
1
C137904
1k
R7
1
C310214
1k
R8
2
C25744
1k
R9, R11
4
C11702
10K
R15, R16, R17, R18

SDR-IoT-Board design files

The KiCad project lives in the Patricknmaina/SDR-IoT-Board repository on GitHub; these links point at the commit this page was built from.

SDR-IoT-Board: common questions

What microcontroller does the SDR-IoT-Board use?

The SDR-IoT-Board is built around the ESP32-S3-WROOM-1-N16R8, from the ESP32 family.

How big is the SDR-IoT-Board?

The SDR-IoT-Board measures 75.5 × 82.7 mm, has 4 copper layers and is 1.6062 mm thick.

How many components are on the SDR-IoT-Board?

86 components, from 44 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 SDR-IoT-Board design files?

From the Patricknmaina/SDR-IoT-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 SDR-IoT-Board design in my own project?

Yes, under the terms of its MIT license, which Patricknmaina chose for the repository.

Can I test firmware for the SDR-IoT-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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