2 layers96.3 × 49.5 mm
Memory Ethernet PCB
BLESS-BEXUS/Storage-Ethernet-System-PCB
Open-source PCB design for high-speed storage and Ethernet networking.
55 parts
2 layers63 × 31 mm
Barometer PCB
BLESS-BEXUS/Dual-Barometer-System-PCBOpen-source dual-barometer PCB with redundant pressure measurement and onboard EEPROM calibration.
- Size
- 63 × 31 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 25
- Nets
- 18
- Pads
- 99
- Tracks, vias
- 80, 70
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 12 Jun 2026
- Updated
- 14 Jun 2026
Overview
Barometer PCB is an open-source printed circuit board by BLESS-BEXUS, from the BLESS-BEXUS/Dual-Barometer-System-PCB repository on GitHub. It is a 2-layer board of 63 × 31 mm with 25 parts on 18 nets, routed with 80 tracks and 70 vias.
It is built around the MS580301BA01-00, NPA-730B-015A and 24LC02B-I/SN, with the AC0805JR-134K7L, RC0603JR-070RL and CGA5L1X7R1C106K160AC among its other parts. Its parts include 5 capacitors, 4 resistors, 3 ICs, 1 diode and 1 connector. It belongs with the sensors and measurement boards of this library.
Main components
10MS580301BA01-00
SMD-8P-40℃~+85℃ 1.8V~3.6V 1Kpa~1.3bar Integrated ADC and digital interface Yes SMD-8P Pressure Sensors ROHSTE ConnectivityPressure Sensors
NPA-730B-015A
SOIC-14-40℃~+125℃ 1.0342bar 3.3V 500us I2C SOIC-14 Pressure Sensors ROHSAmphenolPressure Sensors
24LC02B-I/SN
SOIC-8-40℃~+85℃ 1,000,000 cycles 2.5V~5.5V 200 Years 2Kbit 400kHz 5ms Hardware write protection function、Noise suppression function I2C SOIC-8 EEPROM ROHSMicrochip TechnologyEEPROM
AC0805JR-134K7L
0805Chip Resistor - Surface MountYAGEO
RC0603JR-070RL
UncategorisedUnknown maker
CGA5L1X7R1C106K160AC
120610uF 16V X7R ±10% 1206 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSTDKMultilayer Ceramic Capacitors MLCC - SMD/SMTKGM21AR71C105JU
-Multilayer Ceramic Capacitors MLCC - SMD/SMTKyocera AVX
CR0603-FX-3300ELF
0603-55℃~+155℃ 100mW 330Ω 75V Thick Film Resistor ±1% ±100ppm/℃ 0603 Chip Resistor - Surface Mount ROHSBournsChip Resistor - Surface Mount
BM04B-SRSS-TB(LF)(SN)
SMD,P=1mm-25℃~+85℃ 1 1A 1mm 1x4P 3.6mm 4 4.25mm 4P 50V 6mm Auxiliary Solder Pin Copper alloy PA SR Surface Mount,Vertical Tin UL94V-0 White SMD,P=1mm Wire To Board Connector ROHSJSTWire To Board Connector
LTST-C190KRKT
0603-30℃~+85℃ 130° 20mA 2V 62.5mW 631nm 639nm 99mcd Discrete Diode Red Water Clear 0603 LED Indication - Discrete ROHSLite-OnLED Indication - Discrete
README
README.md
Dual-Barometer System
A compact PCB designed to provide wide-range pressure measurement, redundant sensing and onboard calibration for embedded systems where reliability, accuracy and easy integration are key.
Overview
The main goal of this PCB is to improve the reliability and accuracy of pressure measurement in embedded sensing systems.
It is especially useful in applications where pressure conditions may vary significantly during operation and where a single commercial sensor may not provide enough range, resolution or calibration stability.
The board is designed to support:
- Wide-range pressure measurement.
- Redundant pressure sensing.
- Altitude estimation.
- Sensor cross-validation.
- Onboard calibration storage.
- Easy integration with a main controller.
Main Features
- Dual-barometer architecture.
- TE MS5803-01BA high-resolution pressure sensor.
- Amphenol NPA-730B low-pressure backup sensor.
- Shared I2C communication bus.
- Onboard Microchip 24LC02B EEPROM.
- Storage of board-specific calibration coefficients.
- Plug-and-play calibration approach.
- Compact PCB for embedded sensing applications.
- Custom KiCad symbols, footprints and 3D models.
Contributing
· Code of Conduct · Contributing Guide ·
We welcome collaboration from the aerospace and software community. For major changes or data inquiries, please open an issue first.
License
Copyright © 2025-2026 The BLESS Project TeamThis Source Code Form is subject to the terms of the Mozilla Public
License, v. 2.0. If a copy of the MPL was not distributed with this
file, You can obtain one at http://mozilla.org/MPL/2.0/.
Credits & Team
Supported by the REXUS/BEXUS Program and our generous sponsors.
Parts
25| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | M3 | MountingHole:MountingHole_3.2mm_M3_Pad_Via | MH1, MH2, MH3, MH4 |
| 4 | TestPoint | TestPoint:TestPoint_Pad_D1.0mm | TP1, TP1, TP3, TP4 |
| 3 | 100n | Capacitor_SMD:C_0805_2012Metric | C3, C4, C5 |
| 3 | Fiducial | Fiducial:Fiducial_1mm_Mask2mm | FID1, FID2, FID3 |
| 2 | 4k7 | Resistor_SMD:R_0805_2012Metric | R2, R3 |
| 1 | 0R | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | 10µ | Capacitor_SMD:C_1206_3216Metric | C1 |
| 1 | 1µ | Capacitor_SMD:C_0805_2012Metric | C2 |
| 1 | 24LC02 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U3 |
| 1 | 330R | Resistor_SMD:R_0603_1608Metric | R4 |
| 1 | JST_Conn_01x04 | Connector_JST:JST_SH_BM04B-SRSS-TB_1x04-1MP_P1.00mm_Vertical | J1 |
| 1 | LED_Red_631nm | LED_SMD:LED_0603_1608Metric | D1 |
| 1 | MS5803-01BA | BLESS_footprint_lib.kicad_sym:MS5803-01BA | U1 |
| 1 | NPA-730B-015A | Package_SO:SOIC-14W_7.5x9mm_P1.27mm | U2 |
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Questions
How big is the Barometer PCB PCB?
It measures 63 × 31 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Barometer PCB use?
25 parts, built around the MS580301BA01-00, NPA-730B-015A, 24LC02B-I/SN and AC0805JR-134K7L. 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 Barometer PCB KiCad files?
From the BLESS-BEXUS/Dual-Barometer-System-PCB repository on GitHub, at the commit this page was made from: the board is Barometer_PCB.kicad_pcb and its schematic Barometer_PCB.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Barometer PCB design in my own project?
Its repository states no licence, so its author keeps all rights: ask BLESS-BEXUS before reusing the design.