HardLabs

Volta rf

Triax-Labs·volta-rf·hardware/Volta-V1.kicad_pcb

Volta rf PCB layout, top view — open source RISC-V board by Triax-Labs

About the Volta rf PCB

Volta rf is an open source RISC-V PCB design by Triax-Labs, published on GitHub under the CC-BY-NC-4.0 license. It is a 4-layer board measuring 64 × 32 mm, with 64 components from 21 distinct parts.

Its main chip is the CH32V317WCU6, from the RISC-V family. Other key parts include the AMS1117-3.3 and SGL0622Z. By type, the board carries 36 capacitors, 15 resistors, 4 inductors, 3 ICs, 2 crystals and 2 switches.

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

From the project

VoltaRF is a work in progress Software Defined Radio (SDR) that aims to be even cheaper than an RTL-SDR without taking away on the features.

VoltaRF is a homebrew software defined radio (SDR), it is based on parts found inside a cheap 'n old satellite DVB-S television receiver.

The RTL-SDR itself being a by product of a television related product, I decided to base my own SDR on satellite television receiver parts, most notably the RF tuner found inside those.

After some testing I was able of finding out one very common RF tuner chip, the RDA5815. When it was put to testing I was able of getting it to tune in the range of 50MHz and all the way up to 2.5GHz (covering amateur bands, ISM, commercial broadcasting as well as…

Volta rf, from the project README
From the project README

Main components on the Volta rf

AMS1117-3.3CH32V317WCU6SGL0622Z

Volta rf bill of materials (BOM)

64 components, 21 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
AMS1117-3.3
U1
1
CH32V317WCU6
CH32V317WCU6_C49188393
WCH(南京沁恒)
U3
1
SGL0622Z
Qorvo
U4
1
X50328MSB2GI
YXC(扬兴晶振)
X1
1
Q13FC13500004
Q13FC1350000400
EPSON(爱普生)
X2
2
TS-1088-AR02016
SW1, SW2
1
KT-0603R
KENTO
LED1
1
KT-0603W
0603White light_C2290
KENTO
LED2
2
BLM18PG121SN1D
BLM18PG121SN1D_C14709
muRata(村田)
L1, L2
2
SDCL1608C68NJTDF
SDCL1608C68NJTF
Sunlord(顺络)
L3, L4
4
CL10A225KO8NNNC
SAMSUNG(三星)
C1, C3, C8, C29
23
CL05B104KO5NNNC
SAMSUNG(三星)
C2, C4, C5, C6, C7, C9, C10, C11 +15
1
CL05A225MQ5NSNC
SAMSUNG(三星)
C12
2
0402CG200J500NT
FH(风华)
C15, C18
2
0402CG120J500NT
FH(风华)
C16, C17
2
0402CG270J500NT
0402CG270J500NTN
FH(风华)
C19, C23
2
0402B102K500NT
FH(风华)
C28, C30
8
0402WGF5601TCE
UNI-ROYAL(厚声)
R1, R2, R3, R4, R5, R6, R12, R13
2
0402WGF3300TCE
UNI-ROYAL(厚声)
R7, R8
3
0402WGF2001TCE
UNI-ROYAL(厚声)
R9, R14, R15
Show 1 more
QtyPartRefs
2
0402WGF499JTCE
UNI-ROYAL(厚声)
R10, R11

Volta rf design files

The KiCad project lives in the Triax-Labs/volta-rf repository on GitHub; these links point at the commit this page was built from.

Volta rf: common questions

What microcontroller does the Volta rf use?

The Volta rf is built around the CH32V317WCU6, from the RISC-V family.

How big is the Volta rf PCB?

The Volta rf measures 64 × 32 mm, has 4 copper layers and is 1.6062 mm thick.

How many components are on the Volta rf?

64 components, from 21 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 Volta rf design files?

From the Triax-Labs/volta-rf 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 Volta rf design in my own project?

It is published under CC-BY-NC-4.0, which limits how it may be reused; read the license before building on it.

Can I test firmware for the Volta rf without the hardware?

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

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