Hi sir,
I have query regarding interfacing of lmp91200 ic
not getting proper values on adc.
I was tried to read analog signal using arduino nano board
I have configured adc read in loop() at every 500 ms
when i have change ph buffer no value is changing.
I am just checking adc raw values with different ph buffer solution
I have attached working ph sensor with ic
I am operting that ic on 3.3V DC Voltage
I have also given VREF = 3.3V
and i have attached vout to microcontroller adc
so when i am changing ph buffer solution not getting proper analog output.
means i have 10 bit adc resolution on microcontroller
but adc raw value getting from lmp91200 continues varying.
Thanks.