rickcjmac
Member Since: June 28, 2012
Country: United States
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You can measure heavier objects by putting the object on two or three legs then measure the force under one leg. It won't be very accurate, but it should give you an inexpensive ballpark estimate.
As far as cutting the sensor, I don't think it'll work the same, but it looks like you should be able to connect to it so maybe it will work.
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You have to make a calibration equation. For example, put 1 lb on the sensor then note the voltage. Put a 2 lb weight on the sensor and note the voltage. Repeat this up to 100 lb (or your sensor's upper limit) and you can use a regression model like least-squares to fit an equation to the data points.
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You have to make a calibration equation. For example, put 1 lb on the sensor then note the voltage. Put a 2 lb weight on the sensor and note the voltage. Repeat this up to 100 lb (or your sensor's upper limit) and you can use a regression model like least-squares to fit an equation to the data points.
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With the Arduino Uno there are 6 analog input pins (A0 through A5), so you can easily connect 6 pressure sensors as shown in the tutorial. The Arduino Mega has 16 analog input ports I believe, so you could measure 16 pressure sensors with a Mega.
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