I am creating a bottle weight measurement system. The bottle must be in a hanging state so that it is easy for the customer to replace, thus I cannot use a conventional scale for this application. I have tried using a Force Sensitive Resistor (FSR), however the readings will vary by nearly 100 points each time I remove and reconnect the bottle (even without liquid!).
I am looking for cheap, but accurate alternatives to a FSR. I have tried looking into Load Cells, however they are on the scale of over $100, even for smaller newton ratings.
Specifically I need something similar to this:
https://www.adafruit.com/product/166
edit: forgot to mention that I need to be able to ship to Japan... I'm not in the US or UK
I am looking for cheap, but accurate alternatives to a FSR. I have tried looking into Load Cells, however they are on the scale of over $100, even for smaller newton ratings.
Specifically I need something similar to this:
https://www.adafruit.com/product/166
edit: forgot to mention that I need to be able to ship to Japan... I'm not in the US or UK