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weight change sensor for arduino?

Former Member
Former Member over 10 years ago

Hello everyone,

 

I am a newbie, but I have done a fair bit of reading and researching about Arduino programming and motor controlling and I think with some help from you I am ready to start my project which is basically an electric fishing reel to be used for automatic jigging.

 

The idea is based on programming the motor to let the fishing line drop down to the bottom then start hauling it in cycles at different speeds and distances, and when fish strikes, it hauls the line all the way up to the boat !

 

my question is, is there a sensor that can sense the weight change on the line to trigger the hauling process?

For example, if I program the sensor for the normal operating weight on the line to be between 0.5kg and 0.75kg, and anything above that will be considered as a catch and will start the hauling process.

 

There are few automatic jigging machines in the market which I got the idea from, but way too expensive "over $3000", and also on a commercial fishing scale which is not my field.

And they work the same way I explained above "sensing the extra weight on the line", so I am confident that there is a sensor of that kind, but unfortunately I failed to find it so far !

 

It would be great to get an answer so I can go ahead and start the project.

 

I still have some more questions about the project, but I thought I would start with this one, and then take it from there.

 

Thank you in advance.

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  • dougw
    dougw over 10 years ago +1
    Maybe all you need is a spring - when it stretches far enough it closes a switch.
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  • clem57
    0 clem57 over 10 years ago

    https://en.wikipedia.org/wiki/Piezoelectric_sensor shows one way to measure resistance from weights.

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  • clem57
    0 clem57 over 10 years ago

    https://en.wikipedia.org/wiki/Piezoelectric_sensor shows one way to measure resistance from weights.

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  • Former Member
    0 Former Member over 10 years ago in reply to clem57

    Clem,

    That's an option, but not quite what am looking for, as it is a push/push sensor and there is also a pull/pull sensor that work on same principle, but these are for high tension cables and ropes.

    Here is a video for an electric jigging machine which I got the idea from, it basically drops the fishing line to the bottom, starts zig-sagging the line up and down at a programmed pattern, and when fish takes the hook and pulls on the line, the motor automatically senses the force and hauls the line to a programmed stop point. ie. the surface of the water.

     

    fast forward to 1:50 to see the concept if you find the video boring as its a long one !

     

    https://www.youtube.com/watch?v=DuDRJfGU8FU

     

    cheers.

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