2 layers34.5 × 18.5 mm
Hardware PicoKey
Keyaan-07/PicoKey
A FIDO2 based passkey using the RP2350A and in it's smallest form factor!
37 parts10MIT
4 layers72 × 72 mm
Hardware rf
Astralis1409/VikramSat-RF-subsystem2WIP - VikramSat's Official Radio Communications Subsystem with hardware, software and more.
- Size
- 72 × 72 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 100
- Nets
- 109
- Pads
- 439
- Tracks, vias
- 807, 200
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 2 Jul 2025
- Updated
- 16 Aug 2025
Overview
Hardware rf is an open-source printed circuit board by Astralis1409, from the Astralis1409/VikramSat-RF-subsystem repository on GitHub, published under the MIT licence. It is a 4-layer board of 72 × 72 mm with 100 parts on 109 nets, routed with 807 tracks and 200 vias.
It is built around the BALF-SPI2-02D3, GSQ5110 and SK5129, with the W25Q128JVSIQ, AMS1117S-3.3 and ESDS314DBVR-TP among its other parts. Its parts include 49 capacitors, 14 resistors, 9 ICs, 4 diodes and 4 connectors. It belongs with the radio and wireless boards and the RP2350 boards of this library.
Main components
6
BALF-SPI2-02D3
UFBGA-6-40℃~+105℃ 2.2dB 433MHz 433MHz 50Ω UFBGA-6 RF Filters ROHSSTMicroelectronicsRF Filters
GSQ5110
QFN-16-EP(3x3)QFN-16-EP(3x3) RF Power Amplifiers ROHSGPowerTekRF Power Amplifiers
SK5129
DFNWB1.6x1.6-6-15dBm -25dBm -40℃~+85℃ 1.2dB 1.6V~3.6V 10dB 15dB 30dB 6.5mA DFNWB1.6x1.6-6 Low Noise Amplifiers (LNA) - RF ROHSSuntekLow Noise Amplifiers (LNA) - RF
W25Q128JVSIQ
SOIC-8-208mil-40℃~+85℃ 100,000 cycles 120ms@(32KB) 128Mbit 133MHz 1uA 2.7V~3.6V 20 Years 3ms Power-on reset、Hardware write protection、Software write protection、Write enable latch、Absolute write protection SPI SOIC-8-208mil NOR FLASH ROHSWinbondNOR FLASH
AMS1117S-3.3
SOT-89-3-40℃~+125℃@(Tj) 0.003%Vout 1 1A 3.3V 30V 3mA 70dB@(120Hz) Fixed Positive Thermal shutdown SOT-89-3 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSJSMSEMIVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
ESDS314DBVR-TP
SOT-23-5-55℃~+125℃ 1.3pF、2.7pF 1uA 25A@8/20us 3.6V 450W@8/20us 5V、12V 7.5V IEC 61000-4-2、IEC 61000-4-5、IEC 61000-4-4 SOT-23-5 ESD and Surge Protection (TVS/ESD) ROHSTECH PUBLICESD And Surge Protection (TVS/ESD)
README
README.mdVikramSAT RF Board
VikramSAT RF Board is the main communications board for the 'vikramsat', which is a 2U cubesat that me and my teammates are trying to make. This board also includes the RP2350A as the main data processing IC along with multiple interfaces.
The RF transmitter on this board has an output Power of 4 Watts and it is not recommend to use this without a ham radio license. although you can receive data just fine.
It uses the CC1125 RF Transceiver from Texas Instruments as it's Transceiver and GSQ5111 Power Amplifier and it operates in the 70cm band. the RP2350A acts as a control IC for the CC1125 and this simplifies the process for the OnBoard Computer(the OBC of the cubesat)
Why I chose to make this project
Me and my friends got an idea of making a cubesat about this time last year, and started learning all the electronics and design, and i am the leader of the group and i design the communications part. I chose to make this project in highway because this was the perfect time, as i was thinking about starting to make the pcb anf highway was announced, and surprisingly, only 4 hours are left from now until highway ends forever!
Images
Kicanvas Link: Here
Files now have .STEP files!
BOM
Final Breakdown at the bottom
Parts
100| Qty | Value | Footprint | References |
|---|---|---|---|
| 11 | 100n | Capacitor_SMD:C_0402_1005Metric | C20, C22, C23, C24, C25, C26, C27, C28, C29, C30, C31 |
| 11 | 47n | Capacitor_SMD:C_0402_1005Metric | C3, C4, C5, C6, C7, C9, C11, C12, C13, C15, C16 |
| 9 | 4.7u | Capacitor_SMD:C_0402_1005Metric | C17, C18, C19, C21, C34, C35, C36, C39, C40 |
| 5 | 220p | Capacitor_SMD:C_0402_1005Metric | C45, C46, C47, C48, C49 |
| 5 | LOGO | LOGO | G***, G***, G***, G***, G*** |
| 5 | ~ | mainfoot:Debug Pad | DP1, DP2, DP3, DP4, DP5 |
| 4 | 10k | Resistor_SMD:R_0402_1005Metric | R8, R9, R10, R11 |
| 4 | 15p | Capacitor_SMD:C_0402_1005Metric | C1, C2, C32, C33 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_3mm_Pad_Via | H1, H2, H3, H4 |
| 3 | 1k | Resistor_SMD:R_0402_1005Metric | R6, R7, R12 |
| 2 | 100nF | Capacitor_SMD:C_0402_1005Metric | C37, C38 |
| 2 | 10u | Capacitor_SMD:C_0805_2012Metric | C41, C42 |
| 2 | 27 | Resistor_SMD:R_0402_1005Metric | R4, R5 |
| 2 | 4259-63 | mainfoot:PE4259 | IC3, IC4 |
| 2 | 5.1k | Resistor_SMD:R_0402_1005Metric | R13, R14 |
| 2 | Crystal_GND24 | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1, Y2 |
| 2 | D | Diode_SMD:D_0402_1005Metric | D2, D3 |
| 1 | 0 | Resistor_SMD:R_0402_1005Metric | R1 |
| 1 | 10n | Capacitor_SMD:C_0402_1005Metric | C10 |
| 1 | 1200p | Capacitor_SMD:C_0402_1005Metric | C43 |
| 1 | 1n8 | Capacitor_SMD:C_0402_1005Metric | C8 |
| 1 | 220n | Capacitor_SMD:C_0402_1005Metric | C14 |
| 1 | 3.3u | easyeda2kicad:IND-SMD_L2.0-W1.6_AOTA-B201610S3R3-101-T | L1 |
| 1 | 33 | Resistor_SMD:R_0402_1005Metric | R3 |
| 1 | 56k | Resistor_SMD:R_0402_1005Metric | R2 |
| 1 | 5p | Capacitor_SMD:C_0402_1005Metric | C44 |
| 1 | AMS1117s-3.3 | Package_TO_SOT_SMD:SOT-89-3 | U5 |
| 1 | BALF-SPI2-02D3 | mainfoot:BALFSPI202D3 | IC2 |
| 1 | CC1125RHBR | mainfoot:QFN50P500X500X100-33N-D | IC1 |
| 1 | Conn_01x03_Socket | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J2 |
| 1 | Conn_02x20_Top_Bottom | Connector_PinHeader_2.54mm:PinHeader_2x20_P2.54mm_Vertical | J3 |
| 1 | Conn_Coaxial | Connector_Coaxial:SMA_Amphenol_901-143_Horizontal | J1 |
| 1 | ESDS314DBVR | user_imported_devices:ESDS314BVR_SOT95P280X145-5N | D4 |
| 1 | GSQ5110 | easyeda2kicad:QFN-16_L3.0-W3.0-P0.50-TL-EP2.0 | U3 |
| 1 | LED | LED_SMD:LED_0402_1005Metric | D1 |
| 1 | RP2350A-QFN60 | mainfoot:RP2350A_QFN-60_EP_7.75x7.75_Pitch0.4mm | U1 |
| 1 | SK5129 | easyeda2kicad:DFN-6_L1.6-W1.6-P0.50-BL-EP1.0 | U4 |
| 1 | SW_Push | Button_Switch_SMD:SW_SPST_PTS810 | SW1 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_XKB_U262-16XN-4BVC11 | J4 |
| 1 | W25Q128JVS | Package_SO:SOIC-8_5.3x5.3mm_P1.27mm | U2 |
The 98 most common of 100 parts.
Questions
How big is the Hardware rf PCB?
It measures 72 × 72 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Hardware rf use?
100 parts, built around the BALF-SPI2-02D3, GSQ5110, SK5129 and W25Q128JVSIQ. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Hardware rf KiCad files?
From the Astralis1409/VikramSat-RF-subsystem repository on GitHub, at the commit this page was made from: the board is hardware_rf/hardware_rf.kicad_pcb and its schematic hardware_rf/hardware_rf.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Hardware rf design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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