OBC
About the OBC PCB
OBC is an open source PCB design by spel-uchile, published on GitHub. It is a 2-layer board measuring 96 × 89.9 mm, with 14 components from 13 distinct parts.
Other key parts include the Payload, BMP180-V2, MPU-9250 and XA1110. By type, the board carries 10 connectors and 4 ICs.
It belongs with the science & space and sensors designs in this gallery.
From the project
Radiosonde platform to develop, test and integrate payloads for the future CubeSats missions
This repository contains the software and the PCB designs of a radiosonde. This radiosonde is used as a platform to test and integrate payloads for the future CubeSat missions. Version 4.0 complies with the PC104 board standard for CubeSats. The balloon's software architecture uses a command pattern with a ZMQ data format.
The OBC of the radiosonde consists on a PC104 PCB board compatible with the design specification of the SUCHAI CubeSat. The shape of the board considers spaces to improve the cable management inside the radiosonde. The board has some socket pins to connect either a…
Main components on the OBC
OBC bill of materials (BOM)
14 components, 13 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | Payload | PC104-Standard | U0 |
| 1 | BMP180-V2 | BMP180-V2 | U1 |
| 1 | MPU-9250 | MPU-9250-BREAKOUT-R | U2 |
| 1 | XA1110 | XA1110 | U3 |
| 1 | Power | PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | Terminal_5V0 | TerminalBlock_Altech_AK300-2_P5.00mm | J2 |
| 1 | PICOBLADE1 | Molex_PicoBlade_53048-0610_1x06_P1.25mm_Horizontal | J3 |
| 1 | PICOBLADE2 | Molex_PicoBlade_53048-0610_1x06_P1.25mm_Horizontal | J4 |
| 2 | I2C | PinHeader_1x04_P2.54mm_Vertical | J5, J6 |
| 1 | CSP_I2C | PinHeader_1x04_P2.54mm_Vertical | J7 |
| 1 | Power2 | PinHeader_1x02_P2.54mm_Vertical | J8 |
| 1 | RPI_MOUNT3 | PinHeader_1x01_P2.54mm_Vertical | J13 |
| 1 | RPI_MOUNT4 | PinHeader_1x01_P2.54mm_Vertical | J14 |
OBC design files
The KiCad project lives in the spel-uchile/balloon_experiment repository on GitHub; these links point at the commit this page was built from.
- LayoutOBC/hw/PCB/OBC.kicad_pcb
OBC: common questions
How big is the OBC PCB?
The OBC measures 96 × 89.9 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the OBC?
14 components, from 13 distinct parts. The full bill of materials is listed on this page.
Where can I download the OBC design files?
From the spel-uchile/balloon_experiment repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the OBC design in my own project?
The repository has no license, so all rights stay with spel-uchile. Use it as a reference, and ask the author before reusing the design.
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