Snowy’s eating — tweeting my cats weight & dining habits with a Raspberry Pi

Snowy enjoying her food while being measured
Snowy enjoying her food while being measured

Project Overview

Diagram indicting two scales and camera placement
Diagram indicting two scales and camera placement
Snowy The Cat on Twitter

Hardware — how much food?

A “straight bar” load cell
A “straight bar” load cell
Load cell mounted between boards
Load cell mounted between boards

Hardware — cat weight

Snowy was not helpful when I tried to measure her length
Snowy was not helpful when I tried to measure her length
Wooden offset bracket for load cell
Offset bracket for load cell
Closeup of wooden mounting bracket
Closeup of wooden mounting bracket
The four load cells are mounted to each corner and wired together
The four load cells are mounted to each corner and wired together
Two HX711 amplifier modules connected to the Raspberry Pi
Two HX711 amplifier modules connected to the Raspberry Pi

Real world testing

Snowy avoiding the scale in version 1
Snowy avoiding the scale in version 1
Small walls around her food encouraged Snowy to stand on the scale
Small walls around her food encouraged Snowy to stand on the scale
Final cat weigh station — now painted
Final cat weigh station — now painted

What’s next

Links

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Day job: data steaming & system architecture. Night gig: IoT and random project hacking

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Simon Aubury

Simon Aubury

Day job: data steaming & system architecture. Night gig: IoT and random project hacking

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