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4 layers41.2 × 60 mmSOLIS1, the printed circuit board in 3D

A can sat

Size
41.2 × 60 mm
Copper layers
4
Thickness
1.6 mm
Parts
69
Nets
77
Pads
282
Tracks, vias
599, 110
Pours
3
Routed
Yes
KiCad
KiCad 10.0 (file 20260206)
Created
30 Jul 2026
Updated
3 Nov 2026

Overview

SOLIS1 is an open-source printed circuit board by Zoomwag, from the Zoomwag/SOLIS1 repository on GitHub. It is a 4-layer board of 41.2 × 60 mm with 69 parts on 77 nets, routed with 599 tracks and 110 vias.

It is built around the ESP32-S3-WROOM-1U-N16R8, BMP390 and BQ25185DLHR. Its parts include 28 resistors, 21 capacitors, 7 connectors, 5 ICs and 3 diodes. It belongs with the ESP32 boards of this library.

Main components

3

README

README.md

Solis 1 CanSat

image

About

Solis 1 is my custom-built CanSat project, designed to fit all the main systems of a small satellite inside a compact cylindrical enclosure.

The CanSat measures approximately:

  • 64 mm in diameter
  • 110 mm tall

The project includes a custom flight computer PCB, a lightweight enclosure, onboard software, a recovery system and a ground station.

The aim of Solis 1 is to create a compact and system that can collect data during a test flight, transmit information back to the ground and safely return for recovery.


Project Goals

The main goals of the project are to:

  • Design a fully custom flight computer
  • Fit the complete system inside the CanSat enclosure
  • Collect and store flight data
  • Transmit data to a ground station
  • Create a lightweight but strong structure
  • Test the CanSat through multiple ground and flight tests
  • Learn more about PCB design, electronics, programming and engineering

CanSat Design

The outside structure is designed to protect the electronics while keeping the CanSat lightweight and easy to assemble.

The design includes mounting points for the flight computer, battery and other internal parts. It will also allow the CanSat to be opened for maintenance, testing and repairs.


Flight Computer PCB

The Solis 1 flight computer is a custom PCB designed specifically for this project.

It will connect the main electronics together and reduce the amount of loose wiring inside the CanSat. The PCB is being designed to be compact, organised and easy to test.


PCB Schematic

The schematic shows how the components on the flight computer are connected together

image

PCB Layout

The board is designed to fit inside the Solis 1 enclosure while leaving enough space for mounting holes, connectors and other internal parts.

image image image

I even included some really nice graphics on the back


BOM

image Here you can see the bom for Solis 1

Mechanical Design

This includes the outer enclosure, internal mounts, PCB supports and recovery-system parts. The design needs to be compact, lightweight and strong enough to protect the electronics during testing and landing.

image image image image

#Images image.png

image.png

theses are the pcb boards for solis 1 you can see the mother board and the daughter board. You can also see the very nice silkscreen :)

image.png

this was when i wired them together

image.png

here are the electronics inside of the enclosure

image.png

here is everyting wiht the lid on

Parts

69
QtyValueFootprintReferences
1110KResistor_SMD:R_0603_1608MetricR3, R4, R5, R6, R7, R8, R9, R10, R17, R23, R28
8100nFCapacitor_SMD:C_0603_1608MetricC2, C4, C8, C23, C25, C26, C27, C28
410uFCapacitor_SMD:C_0805_2012MetricC1, C5, C15, C22
3100KResistor_SMD:R_0603_1608MetricR2, R13, R22
31uFCapacitor_SMD:C_0805_2012MetricC3, C21, C24
322Resistor_SMD:R_0603_1608MetricR1, R24, R25
34.7KResistor_SMD:R_0603_1608MetricR12, R26, R27
22.2uFCapacitor_SMD:C_0805_2012MetricC16, C19
247uFCapacitor_SMD:C_1206_3216MetricC6, C17
25.1KResistor_SMD:R_0603_1608MetricR15, R16
2LEDLED_SMD:LED_0805_2012MetricD1, D2
2SW_PushButton_Switch_SMD:SW_Push_SPST_NO_Alps_SKRKSW5, SW6
10Resistor_SMD:R_0603_1608MetricR11
118KResistor_SMD:R_0603_1608MetricR18
11KResistor_SMD:R_0603_1608MetricR19
11uHSOLIS1FOOTPRINTS:DFE2HCAH1R0MJ0LL2
1220Resistor_SMD:R_0603_1608MetricR14
122uFCapacitor_SMD:C_1206_3216MetricC20
1470uFCapacitor_SMD:C_1206_3216MetricC7
1511KResistor_SMD:R_0603_1608MetricR20
191KResistor_SMD:R_0603_1608MetricR21
1BMP390SOLIS1FOOTPRINTS:BMP390IC6
1BQ25185DLHRSOLIS1FOOTPRINTS:SON40P220X200X80-11NIC4
1BatteryConnector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_VerticalJ7
1CameraConnector_PinHeader_2.54mm:PinHeader_2x09_P2.54mm_VerticalJ10
1Conn_01x03_PinConnector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_VerticalJ3
1Conn_01x04_SocketConnector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_VerticalJ9
1ESP32-S3-WROOM-1U-N16R8SOLIS1FOOTPRINTS:ESP32S3WROOM1UN16R8IC5
1LORA MODULEConnector_PinHeader_2.54mm:PinHeader_1x09_P2.54mm_VerticalJ2
1LSM6DSOTRSOLIS1FOOTPRINTS:LSM6DS3USTRAC2
1MF-NSMF075_8X-2SOLIS1FOOTPRINTS:MFNSMF0758X2F2
1Micro_SD_Card_Det1randomaprt:1040310811J1
1SS14-E3/5ATDiode_SMD:D_SMAD3
1TPS22919DCKTrandomaprt:SOT65P210X110-6NIC1
1TPS631000DRLRSOLIS1FOOTPRINTS:SOTFL50P160X60-8NU3
1USB_C_Receptacle_USB2.0_16PConnector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_HorizontalJ6

Questions

How big is the SOLIS1 PCB?

It measures 41.2 × 60 mm and has 4 copper layers, 1.6 mm thick.

What parts does the SOLIS1 use?

69 parts, built around the ESP32-S3-WROOM-1U-N16R8, BMP390 and BQ25185DLHR. 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 SOLIS1 KiCad files?

From the Zoomwag/SOLIS1 repository on GitHub, at the commit this page was made from: the board is PCB/Kicad/Solis1.kicad_pcb and its schematic PCB/Kicad/Solis1.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the SOLIS1 design in my own project?

Its repository states no licence, so its author keeps all rights: ask Zoomwag before reusing the design.

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