Hello. My name is Fahima C. I am a rising Senior at MLK Law Advocacy Community and Justice. For my starter project I made a Mini Gram Piano because I was fascinated by how only a little circuit board can let me do variety of things, like play eight keys with three octave. For my main project, I built a voice controlled robot because of endless amount of reason. One of the biggest was that I always wanted to know, how can a robot that has no life can listen to me and response to my command. Then, I always wanted to learn how to code, and this was one of the project that interested me and was mostly about coding. Therefore, I thought this would be the best option and most interesting thing to spend my three weeks on.

DOCUMENTATION:
Build Plan:

Bill of Materials

code

robot design

Final Milestone

In the past six weeks in BlueStamp, I have had the best experience I can ever wish for. I finally finished my voice controlled robot. With the short amount of time and tons of struggle, I finally got to the finish line. Since my first milestone, I have made a lot of progress with my robot. I got all the commands working and completely built the robot

First Milestone

Mini Gram Piano

Hello. I am Fahima and for my starter project, I built a Gram Mini Piano. A Gram Piano is a through-hole soldering kit that transforms a pile of hardware into a mini piano, ready for the playing. This kit provides you with the ability to play an octave worth of notes using the capacitive touch keys. The materials required for this project can be found in sparkfun. https://www.sparkfun.com/products/11835 This project consists of thirty-three parts to be soldered. For the most part, the parts are very small. The tiniest parts are the capacitors placed in the middle of the board . Capacitors stores charge and it releases charge when it’s needed. Charge is what flows during an electric current. The capacitor is used by the microprocessor. The orientation of this capacitor does not matter because it’s not polarized. Non-Polarized means it’s symmetrical and the charges are equally distributed. Next I placed the resistors; the function of a resistor is to limit the flow of the electric current. There are three types of resistors used in this project, 2M Ohm, 10K Ohm, and 330 Ohm. You have to pay attention with the colors in the rings. The 2M ohm has a green band in the middle, 10K ohm has an orange band in the middle and the 330 ohm has a brown band. The color serves as an indicator and different color represents different rate of tolerance. The value of the resistors are on the kit, so it is not a problem to know where the resistors are placed. The orientation does matter because these are polarized and polarized means it asymmetrical and the charges are not equally distributed. There are three different types of resistor because they all have different multipliers and tolerance. The circuit with the higher resistance will allow less charge to flow, meaning the circuit with higher resistance has less current flowing through it. Another important component is the potentiometer; potentiometer is a variable resistor, simply, it is another type of resistor; it’s a resistor for regulating current. However, for this device, the potentiometer serves as an octave select. As you turn the arrow, three different octave can be played. Moreover, another significant part is the microprocessor, which acts like the brain in our body. It gives and receives instructions from other components of this device. The biggest parts involved in this project are the batteries. The batteries stores chemical energy but when it’s connected to a circuit, the chemical energy is converted to electrical energy, which is sent around the other components, in order for the piano to work. However, just be careful with the battery holders, don’t bend them. My battery holders were bent, therefore, I had to place a band under the battery to make it work. And that’s it, turn on the switch and you can start playing the keys right after you finished building it because there is a microcontroller included with the Gram Piano that comes with the pre-installed program, which allows you to play octave notes.

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