2 layers100 × 100 mm
LEOS flight computer
VIP-LES/flight-computer-pcb
The flight computer PCB stack design. Started Fall '25
38 parts
2 layers100 × 100 mm
LEOS ground station
VIP-LES/leos-ground-station-pcb- Size
- 100 × 100 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 38
- Nets
- 47
- Pads
- 196
- Tracks, vias
- 203, 243
- Pours
- 14
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 20 Feb 2026
- Updated
- 7 Oct 2026
Overview
LEOS ground station is an open-source printed circuit board by VIP-LES, from the VIP-LES/leos-ground-station-pcb repository on GitHub. It is a 2-layer board of 100 × 100 mm with 38 parts on 47 nets, routed with 203 tracks and 243 vias.
It is built around the E22-400M30S, E22-900M30S and MPM3620AGQV-Z, with the CRCW0805130RFKEAC, CRCW0805100KFKEAC and CRCW08054K70FKEAC among its other parts. Its parts include 10 resistors, 4 capacitors, 4 connectors, 3 ICs and 3 diodes.
Main components
12
E22-400M30S
SMD,38.5x24mm-151dBm 1.2km 14mA 2.5V~5.5V 30dBm 650mA Continuous frequency coverage LoRa SPI Stamp Hole Antenna、IPEX interface SMD,38.5x24mm LoRa Modules ROHSChengdu Ebyte Elec TechLoRa Modules
E22-900M30S
SMD,38.5x24mm-151dBm 12km 14mA 2.5V~5.5V 31dBm 650mA Continuous frequency coverage IPEX interface LoRa SPI SMD,38.5x24mm LoRa Modules ROHSChengdu Ebyte Elec TechLoRa Modules
MPM3620AGQV-Z
QFN-20(3x5)-40℃~+125℃@(TJ) 1 2A 2MHz 300uA 4.5V~24V 800mV~5.5V Adjustable Buck Buck Built-in Yes QFN-20(3x5) DC-DC Converters ROHSMonolithic Power SystemsDC-DC Converters
CRCW0805130RFKEAC
0805-55℃~+155℃ 125mW 130Ω Thick Film Resistor ±1% ±100ppm/℃ 0805 Chip Resistor - Surface Mount ROHSVishay IntertechnologyChip Resistor - Surface MountCRCW0805100KFKEAC
0805-55℃~+155℃ 100kΩ 125mW Thick Film Resistor ±1% ±100ppm/℃ 0805 Chip Resistor - Surface Mount ROHSVishay IntertechnologyChip Resistor - Surface MountCRCW08054K70FKEAC
0805-55℃~+155℃ 125mW 4.7kΩ Thick Film Resistor ±1% ±100ppm/℃ 0805 Chip Resistor - Surface Mount ROHSVishay IntertechnologyChip Resistor - Surface Mount
S4B-XH-A
弯插,P=2.5mm-、- 1x4P、1x2P 1、1 2.5mm、3.96mm 250V、250V 2、4 4P、2P 6.1mm、9.4mm 7.86mm、12.4mm 8.5mm、11.5mm Brass、Brass K Pin PA66、PA66 Right Angle、Through Hole Tin、Tin UL94V-0、UL94V-0 White、White XH、VH Push-Pull,P=2.5mm Wire To Board Connector ROHSJSTWire To Board ConnectorCRCW080510K0FKEAC
0805-55℃~+155℃ 10kΩ 125mW Thick Film Resistor ±1% ±100ppm/℃ 0805 Chip Resistor - Surface Mount ROHSVishay IntertechnologyChip Resistor - Surface Mount
CL21B106KOQNNNE
080510uF 16V X7R ±10% 0805 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSSamsung Electro-MechanicsMultilayer Ceramic Capacitors MLCC - SMD/SMTCRCW080519K1FKEAC
0805-55℃~+155℃ 125mW 19.1kΩ Thick Film Resistor ±1% ±100ppm/℃ 0805 Chip Resistor - Surface Mount ROHSVishay IntertechnologyChip Resistor - Surface MountCRCW0805200KFKEAC
0805-55℃~+155℃ 125mW 150V 200kΩ Thick Film Resistor ±1% ±100ppm/℃ 0805 Chip Resistor - Surface Mount ROHSVishay IntertechnologyChip Resistor - Surface MountCL21A226MAYNNNE
080522uF 25V X5R ±20% 0805 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSSamsung Electro-MechanicsMultilayer Ceramic Capacitors MLCC - SMD/SMT
Parts
38| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H5, H6, H7, H8 |
| 4 | MountingHole | MountingHole:MountingHole_2.7mm_M2.5 | H1, H2, H3, H4 |
| 3 | 130 | Resistor_SMD:R_0805_2012Metric | R3, R4, R5 |
| 2 | 0.1u | Capacitor_SMD:C_0603_1608Metric | C1, C3 |
| 2 | 100k | Resistor_SMD:R_0805_2012Metric | R8, R9 |
| 2 | 1u | Capacitor_SMD:C_0603_1608Metric | C2, C4 |
| 2 | 4.7k | Resistor_SMD:R_0805_2012Metric | R1, R2 |
| 2 | JST XH | Connector_JST:JST_XH_S4B-XH-A_1x04_P2.50mm_Horizontal | J2, J3 |
| 1 | 10k | Resistor_SMD:R_0805_2012Metric | R6 |
| 1 | 10u | Capacitor_SMD:C_0805_2012Metric | Cin1 |
| 1 | 19.1k | Resistor_SMD:R_0805_2012Metric | R10 |
| 1 | 200k | Resistor_SMD:R_0805_2012Metric | R7 |
| 1 | 22u | Capacitor_SMD:C_0805_2012Metric | Cout1 |
| 1 | 400MHz SMA | Connector_Coaxial:SMA_Molex_73251-1153_EdgeMount_Horizontal | ANT2 |
| 1 | 900Mhz SMA | Connector_Coaxial:SMA_Molex_73251-1153_EdgeMount_Horizontal | ANT1 |
| 1 | E22-400M30S | LEOS:XCVR_E22-900M30S | U2 |
| 1 | E22-900M30S | LEOS:XCVR_E22-900M30S | U1 |
| 1 | GPIO | Connector_PinSocket_2.54mm:PinSocket_2x20_P2.54mm_Vertical | J1 |
| 1 | Green LED | LED_SMD:LED_1206_3216Metric | D3 |
| 1 | MPM3620A | CustomFootprints:IC18_MPM3620AGQV-Z_MNP | U3 |
| 1 | PWR Switch | Button_Switch_THT:SW_Slide_SPDT_Angled_CK_OS102011MA1Q | SW2 |
| 1 | Red LED | LED_SMD:LED_1206_3216Metric | D1 |
| 1 | User Button | Button_Switch_THT:SW_PUSH_6mm | SW1 |
| 1 | XT60 Male Horizontal | LEOS:AMASS_XT60IPW-M_1x03_P7.20mm_Horizontal | J4 |
| 1 | Yellow LED | LED_SMD:LED_1206_3216Metric | D2 |
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Questions
How big is the LEOS ground station PCB?
It measures 100 × 100 mm and has 2 copper layers, 1.6 mm thick.
What parts does the LEOS ground station use?
38 parts, built around the E22-400M30S, E22-900M30S, MPM3620AGQV-Z and CRCW0805130RFKEAC. 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 LEOS ground station KiCad files?
From the VIP-LES/leos-ground-station-pcb repository on GitHub, at the commit this page was made from: the board is LEOS-ground-station.kicad_pcb and its schematic LEOS-ground-station.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the LEOS ground station design in my own project?
Its repository states no licence, so its author keeps all rights: ask VIP-LES before reusing the design.