I took apart a weighing scale to get the load cell from it. The weight scale was capable of measuring up to 85 pounds with 5 grams precision. The voltage drop of the weight scale, however, is too small. It is about 0.4 to 1.5 millivolts. I need to read this somehow. I tried amplifying it with op-amps and did not work. I read about high resolution ADC like HX 711. What would the simplest way for reading and feeding the signal from the load cell to microcontroller without compromising the accuracy or precision?
How to read signal from load cell
adcamplifierload cellmicrocontroller
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Best Answer
The ADC that most of hobbyist use for Load cell is ADS1130. This is an 18 bit ADC with internal gain of 64 which transmits the converted bits serially. It would be easy to answer if you had mentioned the model of your microcontroller, because some of the microcontroller has amplifier embedded in it with high resolution bits of adc like Atmega16.