Arduino LINX communication

[Gappiya]

I use Arduino to read voltage and current reading  using LINX but the readings are varying speedily can can anyone suggest to get smooth sine wave ?  

[RTSLVU · Accepted solution]

Arduinos are slow and LINX makes then even slower.

1. What is the frequency of the sine wave you are trying to capture with the Arduino?
2. What is the "Loop Rate" being reported

You are trying to make a digitizer and the "loop rate" being reported is your actual digital sampling rate.

Take a look at this Acquiring an Analog Signal: Bandwidth, Nyquist Sampling Theorem, and Aliasing

Especially the section on Sample Rate