Need Statement

To create a bot that can represent sine and cosine waves.

3.1 Question and Answer

Sl No.	Question	Answer	Objective	Function	Constraint
1.	What must be the size of the machine?	Under 1.5 cubic feet			Yes
2.	Should the machine be automatic or semi-automatic?	Semi-automatic	Yes
3.	What must be the weight of the machine?	Under 2 kg			Yes
4.	Should the machine be user-friendly?	Yes	Yes
5.	Should the machine be portable or non-portable?	Portable	Yes
6.	What must be the energy source for the machine?	12V DC Battery			Yes
7.	Should the machine have external data input or reading capabilities?	Yes, Wi-Fi & Bluetooth		Yes
8.	What is the budget for the machine?	Under ₹4000			Yes
9.	What must be the warranty of the machine?	1 Year			Yes
10.	Should there be an indicator for ongoing processes?	Yes, LED		Yes
11.	Where should the results be displayed?	On a sheet of paper			Yes
12.	What is the time limit for making the machine?	3 months			Yes
13.	How should the machine look?	Aesthetically pleasing	Yes
14.	What options must be provided to the user?	Setting amplitude and waveform		Yes
15.	What materials can be used to build the machine?	Plastic, PLA, Acrylic sheet, Foam sheet	Yes
16.	Should there be a speed control option for the user?	Yes, adjustable (slow for high amplitude, fast for normal amplitude and waveform)		Yes

3.2 Basic Survey and Requirements

3.3 Identifying Client's Objectives

Sl No.	Objectives
1.	Semi-automated machine
2.	User-friendly
3.	Portable
4.	Draws results on a sheet of paper

Problem Definition Version 1.1

Design and develop a semi-automated sine and cosine wave plotter that is user-friendly, portable, and made of plastic, acrylic sheet, and foam sheet. It must be capable of plotting waveforms directly on paper.

3.4 Identifying Constraints

Sl No.	Constraints
1.	Size under 1.5 cubic feet
2.	Weight under 2 kg
3.	Powered by a 12V DC Battery
4.	Budget under ₹4000
5.	Warranty of 1 year
6.	Build time of 3 months

Problem Definition Version 1.2

Develop a semi-automated, user-friendly sine and cosine wave plotter that is portable, operates on a 12V DC battery, weighs under 2 kg, fits within dimensions of 1.5 cubic feet, and costs under ₹4000. It should be built within 3 months and offer a warranty of at least 1 year.

3.5 Establishing the Functions

Sl No.	Functions
1.	Providing connectivity via Wi-Fi and Bluetooth
2.	Indicating input validity using an LED indicator
3.	Adjusting the machine based on input amplitude and waveform
4.	Adjusting the speed of the drawing arm

Problem Definition Version 1.3

Design and develop a semi-automated, user-friendly sine and cosine wave plotter that is portable and capable of plotting waveforms directly on paper. The machine should be able to take manual inputs for customizable wave parameters such as amplitude and waveform, offering flexibility to users. The plotter must be compact, fitting within 1.5 cubic feet, and weigh under 2 kg, making it easy to transport. It should operate on a 12V DC battery and be built within a budget of ₹4000. The project should be completed within 3 months, with a warranty of 1 year. The machine should provide connectivity via Wi-Fi and Bluetooth for remote control and monitoring, include an LED indicator to signal input validity, allow for adjusting amplitude and waveform settings, and feature adjustable speed control for the drawing arm based on user input for precision plotting.