2 layers28.8 × 53 mm Pcb v1, the printed circuit board in 3D

Pcb v1

jackyruth/Low_Cost_Microfluidic_Flowsensor

This project is also well documented: - 'Flowsensor Product Specification.pdf': Datasheet for the flowsensor - 'Flowsensor Requirements, Design & Verification.pdf': A document describing the requirements, design and…

Full screen GitHub .kicad_pcb

Size: 28.8 × 53 mm
Copper layers: 2
Thickness: 0.3 mm
Parts: 44
Nets: 55
Pads: 183
Tracks, vias: 555, 108
Pours: 23
Routed: Yes
KiCad: KiCad 5 (file 20171130)
Created: 24 Mar 2022
Updated: 22 Jan 2024

Overview

Pcb v1 is an open-source printed circuit board by jackyruth, from the jackyruth/Low_Cost_Microfluidic_Flowsensor repository on GitHub. It is a 2-layer board of 28.8 × 53 mm with 44 parts on 55 nets, routed with 555 tracks and 108 vias.

Its parts include 15 capacitors, 8 resistors, 7 ICs, 4 connectors and 1 diode. It belongs with the STM32 boards of this library.

README

README.md

Low Cost Flowsensor

https://github.com/jackyruth/Low_Cost_Microfluidic_Flowsensor/assets/32418878/434e1281-520d-4bf3-973c-ca0241b3b97c

Description

Does the Job! Measures up to 80 uL/min
Cheap! Has a BOM cost < 30CAD
Accurate! 5% Median Accuracy < 55 uL/min, 10-18% Median Accuracy > 55uL/min
Non-invasive! Wet components are standard 1/32' OD tygon tubing and 29G stainless steel
Simple Interface! UART Outputs every 15 seconds

This project is also well documented:

'Flowsensor Product Specification.pdf': Datasheet for the flowsensor
'Flowsensor Requirements, Design & Verification.pdf': A document describing the requirements, design and verification of the flowsensor
'flowsensor_demonstration.MOV': A video showing the benchmarking process
'UBC_BioMEMS_Product_Video.mp4': A video describing the context of the system the flowsensor is originally designed to be a part of.

Project Tree

text

.
├── data
├── julia
├── lsi_lab_validation
├── pcb_v1
├── README.md
├── reagent_compatibility
└── stm32

'data' contains time series temperature data measured at set flow rates
'julia' contains data science Pluto notebooks used to experiment with the time series temperature data and analyze benchmarking data
'lsi_lab_validation' contains the benchmarking data where we pitted the low cost sensor against the Sensirion SLI-0430 FMK flowsensor
'pcb_v1' contains a KiCAD PCB project of the flowsensor
'reagent_compatibility' contains benchmarking data where we ran different reagents, some at different temperatures, through the flowsensor
'stm32' contains the firmware for the flowsensor

License

The hardware design is licensed under CERN-OHL-P-2.0. All other components are licensed under Apache-2.0.

Category and platform

STM32

Project files

Show this board on your page

https://pcbkit.io/boards/jackyruth/Low_Cost_Microfluidic_Flowsensor

The board's own page, for a message or a post.

Source

Repository: jackyruth/Low_Cost_Microfluidic_Flowsensor
Board file: pcb_v1/pcb_v1.kicad_pcb
Commit: 82b12f1
Licence: Not stated

Parts

Qty	Value	Footprint	References
10	100nF	Capacitor_SMD:C_0603_1608Metric	C1, C2, C3, C4, C6, C7, C10, C11, C13, C15
6	10k	Capacitor_SMD:C_0603_1608Metric	R3, R4, R5, R6, R7, R8
5	tmp117	flowsensor:THERMAL_ENHANCED_WSON-6-1EP_2x2mm_P0.65mm_EP1x1.6mm	U1, U2, U3, U4, U7
4	MountingHole	MountingHole:MountingHole_2.2mm_M2	H1, H2, H3, H4
3	SolderJumper_3_Open	Jumper:SolderJumper-3_P1.3mm_Open_RoundedPad1.0x1.5mm_NumberLabels	JP1, JP2, JP3
2	13pF	Capacitor_SMD:C_0603_1608Metric	C12, C14
2	1uF	Capacitor_SMD:C_0603_1608Metric	C8, C9
2	2.2k	Capacitor_SMD:C_0603_1608Metric	R1, R2
1	10uF	Capacitor_SMD:C_0603_1608Metric	C5
1	Conn_01x02	Resistor_THT:R_Box_L8.4mm_W2.5mm_P5.08mm	J2
1	Conn_01x04	Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical	J3
1	Conn_01x07	Connector_PinHeader_2.54mm:PinHeader_1x07_P2.54mm_Vertical	J4
1	Conn_02x03_Odd_Even	Connector:Tag-Connect_TC2030-IDC-NL_2x03_P1.27mm_Vertical	J1
1	Crystal	flowsensor:ECS-.327-12.5-12R-C-TR	Y1
1	D_TVS	Diode_SMD:D_SMA	D1
1	LOGO	flowsensor:ubc_logo	G***
1	STM32L432KBUx	Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.45x3.45mm	U6
1	TC78H651AFNG,EL_Dual_H-Bridge	flowsensor:TC78H651AFNG,EL_Dual_H-Bridge	U5

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Questions

How big is the Pcb v1 PCB?

It measures 28.8 × 53 mm and has 2 copper layers, 0.3 mm thick.

What parts does the Pcb v1 use?

44 parts. 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 Pcb v1 KiCad files?

From the jackyruth/Low_Cost_Microfluidic_Flowsensor repository on GitHub, at the commit this page was made from: the board is pcb_v1/pcb_v1.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the Pcb v1 design in my own project?

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