Eivind Holt
Published © GPL3+

Low-power medical flow meter

Wireless monitoring of medical infusions to alert staff on progress and exceptions.

AdvancedFull instructions provided24 hours1,188

Things used in this project

Hardware components

nRF5340 Development Kit
Nordic Semiconductor nRF5340 Development Kit
×1
Sensirion LD20
×1
Breadboard (generic)
Breadboard (generic)
×1
Jumper wires (generic)
Jumper wires (generic)
×1
Through Hole Resistor, 2.4 kohm
Through Hole Resistor, 2.4 kohm
×1

Software apps and online services

nRF Connect SDK
Nordic Semiconductor nRF Connect SDK
Nordic Semiconductor nRF Connect for Cloud

Hand tools and fabrication machines

Soldering iron (generic)
Soldering iron (generic)
3D Printer (generic)
3D Printer (generic)
Mastech MS8217 Autorange Digital Multimeter
Digilent Mastech MS8217 Autorange Digital Multimeter

Story

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Custom parts and enclosures

Enclosure STL-files

Enclosure and mockup 3D-print files

Schematics

LD20 circuit schematics

Fritzing diagram of how the sensor is wired to the development board

LD20 circuit schematics image

Code

Source code on github

Source code for nRF5430

Credits

Eivind Holt

Eivind Holt

6 projects • 33 followers
Software engineer, maker, IoT-enthusiast.

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