INPUT DEVICES

For this assignment the goal is measure something. For that we have to add a sensor to a self-made microcontroller board. I want tu use ultrasonic sensor HC-SR04 because I want to use two of them for my final project. This sensor has been designed to measure distances, but it has a lot of aplications. For this task I want to understand how the sensor works taking distances, it is a very simple way to make the sensor work.
For me progamming is something new. So I have decided star with Arduino UNO that is easy, and then I will try with my own self made Fabduino.

1. ARDUINO
Arduino IDE:

Arduino hardware:

You can see a video here:

2. FABDUINO

To fabricate my own Fabduino I have gone to http://fab.cba.mit.edu/content/projects/fabkit/ and from there I have Download Eagle archives: schematic and board.

I have worked with Roland Modela running on Ubuntu. If you want to know more about this technique of fabrication you can go to the assignment Electronics Design.

It has been very difficult to do the holes on the board:

Here is the Fabduino complete: