Debugging of Harmonium Circuit

Maker space of STEM land is used for building new things based on Electrical or Electronics ( sometimes 3D). As the first step, students started to learn soldering using veda kits (soldering kits).  One of students ( Yuvaraj, from 8th grade) soldered the kit of Harmonium. Unfortunately that did not work. So we simulated the circuit first in order to make sure there is no bug in that kit design. As expected no bug in the design.

Harmonium@4khz
Harmonium@4khz
Harmonium@2.6khz
Harmonium@2.6khz

 

 

 

 

 

 

Harmonium simulation file.

Then started debugging the circuit and found the bug in placement of the IC ( Flipped). Now Yuvaraj happy!!!!.

Name Board of Stem Land

On the day of inauguration students ( Yuvaraj & Preethika) built seven segment display to display “STEMLAND” using arduino without any pre plan (fig-1). Then some of the students (Anushwathi, Praveen, Sundar, Sharmila) wanted to make it as name board for Stemland by soldering it properly(Fig-2).

IMG_20151009_121819674
Fig-1
StemLand
Fig-2

In addition to that, There is another name board  available for the Stemland ( second door) which was made using 3D printer.

Stemland

Alice Program

Alice is a programming which support the creation of 3D animation. Student can create a program to animate his or her own imaginative environment ( people, animals, objects & places). A student (Rathinavel) from 8 grade made a program in Alice ( find below) . He created a  program which visualize the environment of  seashore and the sea. Indeed, he is the first student who did full fledged program in  Alice.

Fraction addition

Children demonstrating their understanding of fraction addition and the common mistakes they made when they kept forgetting the procedural step of taking LCM when in 5th grade they used to just add the numerators (the denominators were the same then).