momos123
Published © GPL3+

Hacking a Fitness Tracker Into an OD Meter

Here we introduce a low-cost, open-source, portable fitness tracker-based device for continuous bacterial growth monitoring.

AdvancedFull instructions provided6 hours348
Hacking a Fitness Tracker Into an OD Meter

Things used in this project

Hardware components

Texas Instruments VOltage Regulator TPS709B33DBVT
×1
ON Semiconductor Current regulator NSI45020AT1G
×1
LED AMber
×1
Fitness Tracker ID107
×1

Software apps and online services

openSCAD
Windows 10
Microsoft Windows 10
Arduino IDE
Arduino IDE

Hand tools and fabrication machines

3D Printer (generic)
3D Printer (generic)
Hot glue gun (generic)
Hot glue gun (generic)
Soldering iron (generic)
Soldering iron (generic)
1BitSquared black magic probe

Story

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Custom parts and enclosures

CAD Diagram

CAD Diagram

Code

APK code

Java
APK code
No preview (download only).

Firmware

Arduino
firmware
No preview (download only).

CAD Diagram

SCAD
CAD Diagram
No preview (download only).

Credits

momos123

momos123

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