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OSS Radio Hardware Design

Arkos-Engineering·HT-15_hardware·hardware/KiCad Main Board/OSS Radio Hardware Design.kicad_pcb

OSS Radio Hardware Design PCB layout, top view — open source RP2040/RP2350 board by Arkos-Engineering
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About the OSS Radio Hardware Design PCB

OSS Radio Hardware Design is an open source RP2040/RP2350 PCB design by Arkos-Engineering, published on GitHub. It is a 4-layer board measuring 55 × 100.5 mm, with 218 components from 49 distinct parts.

Its main chip is the RP2350B-QFN80, from the RP2040/RP2350 family. Other key parts include the W25Q128JVS, AP63203WU, MX25L25645GM2I-08G, SPH0645LM4H and MCP73844-820I/MS. By type, the board carries 70 capacitors, 53 diodes, 44 resistors, 10 ICs, 9 connectors and 4 inductors.

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

From the project

We can split this out into separate repos later, right now its very convenient to have everything here.

What will set this radio apart from competitors is:

Fully open source, hardware and software Swappable radio module, allowing easy hardware upgradability (2M/70CM at launch) USBC charge and data, SD card, Kenwood style audio connector, removable battery Low-power E-ink display targeting 72+ hour standby time FM and M17 support at launch, with plans to support many other digital modes in the future such as DMR, P25 (depending on codec licensing) Ability for community to write and easily install “apps” that allow custom features or arbitrary digital mode development Usable “off the shelf”. We…

Main components on the OSS Radio Hardware Design

W25Q128JVSAP63203WUMX25L25645GM2I-08GRP2350B-QFN80SPH0645LM4HMCP73844-820I/MSLM5157RTERP091S-FC20BR10KTLV320AIC3100AMS1117-1.8

OSS Radio Hardware Design bill of materials (BOM)

218 components, 49 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
W25Q128JVS
U1
1
AP63203WU
U4
1
MX25L25645GM2I-08G
U5
1
RP2350B-QFN80
U7
1
SPH0645LM4H
U8
1
MCP73844-820I/MS
U9
1
LM5157RTER
U10
1
P091S-FC20BR10K
P091S-FC20BR10k
U11
1
TLV320AIC3100
U12
1
AMS1117-1.8
U13
1
AO3400A
Q1
2
AO3401A
Q2, Q7
1
ABM8-272-T3
Y1
1
SWD Debug
J1
1
USB4105
J2
1
FH12-24S-0.5SH(55)
J3
1
MEM2061-01-188-00-A_REVA
J4
1
DF40C2.0-24DS-0.4V51
J5
1
SPK_CONN_INT
J6
1
SPK_2.5MM SJ1-2503A
J7
Show 29 more
QtyPartRefs
1
MIC_3.5MM PJ-307C
J8
1
Batt_Conn
J9
1
PEC09-2120F-S0012
SW1
20
TS-1187A-B-A-B
SW_0, SW_1, SW_2, SW_3, SW_4, SW_5, SW_6, SW_7 +12
3
1825027-8
SW_PTT1, SW_SIDE1, SW_SIDE2
23
1N4148WS
D4, D8, D9, D10, D11, D12, D13, D14 +15
1
LED_Charge
D26
6
B340
D30, D54, D55, D56, D57, D58
22
ESD9B3.3ST5G
D31, D33, D34, D35, D36, D37, D38, D39 +14
1
LED_STATUS
D32
2
3.3U
3.3u
L1, L4
1
47U
47u
L2
1
1u
L3
30
100N
100n
C1, C7, C8, C9, C10, C11, C12, C13 +22
17
4.7U
4.7u
C2, C3, C4, C16, C39, C53, C54, C58 +9
3
15P
15p
C15, C19, C43
13
1u
C26, C27, C28, C29, C30, C31, C32, C33 +5
6
47U
47u
C40, C42, C72, C79, C90, C99
1
100P
100p
C49
7
10K
10k
R1, R14, R15, R36, R37, R47, R54
3
27
R2, R4, R5
8
1k
R3, R6, R7, R24, R38, R39, R40, R49
11
5K1
5k1
R8, R9, R19, R21, R22, R28, R42, R43 +3
4
100
R10, R11, R20, R51
1
2.2 1%
R13
3
0
R16, R50, R52
4
100K
100k
R17, R23, R26, R29
2
27K
27k
R18, R27
1
0.1
R25

OSS Radio Hardware Design design files

The KiCad project lives in the Arkos-Engineering/HT-15_hardware repository on GitHub; these links point at the commit this page was built from.

OSS Radio Hardware Design: common questions

What microcontroller does the OSS Radio Hardware Design use?

The OSS Radio Hardware Design is built around the RP2350B-QFN80, from the RP2040/RP2350 family.

How big is the OSS Radio Hardware Design PCB?

The OSS Radio Hardware Design measures 55 × 100.5 mm, has 4 copper layers and is 1.565 mm thick.

How many components are on the OSS Radio Hardware Design?

218 components, from 49 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 OSS Radio Hardware Design design files?

From the Arkos-Engineering/HT-15_hardware 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 OSS Radio Hardware Design design in my own project?

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

Can I test firmware for the OSS Radio Hardware Design without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.

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