hi ericgibbs,
can you tell me how to measure the +/-E voltage, on the HX711 module?

thank you

 

hi,
Look at this.
E

 

Hi djsfantasi,

When you explain to me with one of the data that I get for example 500 grams = 0.55 mV. how to calculate to get value from hx711 module ?

Thank you

I thought I did in my post. Don’t you know how to derive the formula for a straight line? This is basic algebra.

Given two points on the line, (x0,y0) and (x1,y1), the formula is

y = mx + b​

​

Where m and b are calculated as follows

m = ((y1 - y0) / (x1 - x0)​

b = y0 - m*x0​

​

In my example, the two points are (0,0) and (2.5,0). Hence, m and b are as follows.

​

m = (2.5 - 0)/((1024 - 0)​

= (2.5)/(1024)​

= 0.0024​

​

b = y0 - 0.0024 * x0​

​

So, in my example, to calculate the input voltage from the ADC reading, the equation is

Input Voltage = 0.0024*(ADC Reading) +0​

Input Voltage = 0.0024*(ADC Reading)​