Lab 14. Measure of distance

Here we go with Lab 14. What about lab 14? Well, the amazing thing of lab 14 is how we can sense the world. The lab was about making an "electronic ruler". Basically it was the symetry of lab 13 instead of generating signal here I was interpreting signals. 

Once the lab was done and graded I had a little problem with the screen!

It was full of noisy pixel everywhere. After checking once and again every single connection, the solution was, guess what ... turn off, turn on the device! And never had this problem again

Once I put the ruler on the variable resistor, once again, guess what!, I had to calibrate! and linear regrese the values to have a lineal ruler (using excel). Now I had the lcd, here it is the setup!

And finally the electronic ruler in action here!

If you're interested in the code, check it out here.