北東北 LabVIEWユーザー会

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Raspberry Pi Digital Spoon Scale

Control the Raspberry Pi with LINX and hack the spoon scale using the HX - 711 load cell amplifier to obtain digital output

 

Summary

The spoon scale was disassembled and the signal of the load cell was taken out. The signal was measured with a Raspberry Pi programmed with LINX using a HX - 711 load cell amp. It runs LabVIEW web service and displays measurements with Raspberry Pi's web browser.

RbPSpoonScale.JPG

 

Requirements

Raspberry Pi 2B/3B (Raspbian 2017_04_10)

LabVIEW2014 Home Edition

Spoon Scale

HX-711

Push Switch

 

WiringHX-711_wiring.png

LabVIEW Web Service web1.png

 

 

 

Load cellPA010031 2.JPG

 

 

HX-711 ControlHX-711.png

 

 

Raspberry Pi Control Signal (blue:DOUT / orange:SCK)

time-grid:10μsec

F0002TEK.png

 time-grid:500μsecF0003TEK.png

 

 

Project Explorerproject.png

 

 

 

 

 

 

 

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