DATA LOGGING OF TWO DIFFERENT SENSORS

    DATA LOGGING OF TWO DIFFERENT SENSORS

I have done data logging system using MSP430G2 and Python. In this project I tried to plot the real time graph of two sensors namely LDR (light dependent resistor) and IR (infrared sensor).

Here in this project I am using matplotlib, numpy, drawnow in the place of drawnow we can use deque for plotting live graph.

In order to do this project I need to have a good knowledge of the above mentioned libraries. So ill do some experiments with these libraries

First of all I need to know how to plot the graphs and what all the command that are required to plot the graph with our specifications.

Now ill plot a simple graph using some random values that strikes my mind..!

Now I’ll try all the different command that are related to graphs, bar charts, pie charts etc.

Now I’ll try to import the text file and read the 2 different values which are separated ‘delimiter’ from the text file and plot the graph.

Here ‘delimiter’ is single space

 Here ‘delimiter’ is coma “,”

K good! Now I got enough practice to draw the graph, next my task is to import the continuous serial values and plot the graph. Before that we need to fallow few step to attain that.

First of all I need to do check weather can I do any changes to my serial values.     

 It’s possible to do some changes to my serial values. My next task is to add the serial to one another of single sensor

K good now I can plot the graph with these continuous added values by using ‘drawnow’.first ill try to plot for single sensor.

data analysis of 2 sensors (LDR and IR)

 

here i change the plot label to there specified sensors names so that it will more understandable.