Hello everybody,
I have an “old” food weight scale which I broke some years ago (wrong voltage, a long story) and now I was thinking about reusing it.
Can I reuse the load cell (unbranded) and, perhaps, the little lcd screen? How should I wire these components?
This are some photos of the object (in the red circle the burned component)
Yes getting the LCD to work isn't easy and probably not worth the effort. A 1306 or 1602 Display might be a better alternative. Using the loadcell is rather simple, I would recommend to use a HX711 module (you can't connect the loadcell directly to an arduino because the precision of the adc is to low, so you need an external amplifier or an high res adc). There are already a few libraries for example this one: GitHub - bogde/HX711: An Arduino library to interface the Avia Semiconductor HX711 24-Bit Analog-to-Digital Converter (ADC) for Weight Scales.
wiring should be straightforward:
