Arduino Tutorial: Digital scale

In the previous post has been written about the calibration of load cell sensor for measuring the thrust ofpropeller and the motor/engine. In a posting has been found a constant magnitude of the sensor output voltage per gram about 0.267012014. So every 1 gram increase in weight of load will raise the output voltage of the sensor about 0.267012014 mV.

In my project, this output voltage must be converted into digital numbers using the ADC on the Arduino Nano. Henceforth, the data is sent serially to the PC to be displayed in the monitor. PC programs used in visual basic 6. As a development, in terms of measuring the thrust, required the measurement results are presented in graphical form.

What about the working principle of the Arduino program ?

  1. At just the Arduino turn on, will assume the load is 0.
  2. Arduino will sent periodically value of ADC to the PC every 200mS.

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About Bambang Siswoyo

I am a college lecturer since 1988 at UB (University of Brawijaya) in the electronics department. My experience: Applications of Microprocessor system, Applications of Control System, Applications of Field Programmable Gate Array, Computer Programming in computer instrumentations. My hobby: Music especially playing the saxophone, hiking and exploring the countryside.
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