Sub System

Working

Fabrication Plan -

Linkage made with foam sheet

Nylon rod attached to motor

Wiper made with foam sheet and sponge

Reels made of aluminium

Rack and pinion used as pathway and wheels

Box made with acrylic

Foam sticks, reels, box, nylon rod and foam sheet are drilled

Wheels attached to wiper

Interaction aspect Details -

Data interaction -

Data is sent and received between Bluetooth module and aurdino.

Energy interaction -

Power is supplied to motor by 5V adaptor and external voltage by relay.

Spatial interaction –

The linkage of wooden sticks and DC motor are interconnected through nylon rod, box made of acrylic, washers, nuts and bolts.

Program

void setup() { Serial.begin(9600);
pinMode(2,OUTPUT); pinMode(3,OUTPUT);// put your setup code here, to run once:

}

void loop() { char data; data=Serial.read();

if(data=='1') { digitalWrite(2,HIGH); digitalWrite(3,LOW);

} else if(data=='0') { digitalWrite(2,LOW); digitalWrite(3,LOW);

} }

Sub system Photo

Functionality Test Plan

Funcions	planned inputs	test procedure	Expected output	Pass/Fail
DC motor	Motor must run in one direction	Criss cross links attached to motor must have free motion with the connected link	Wiper must have both forward and backward movement	Pass
Scissor lift mechanism	Links made of foam must be tightly attached to DC motor with nuts and bolts	The links must have free forward and backward movement	Wiper tightly connected with link must free move forward and backward	Pass
Rack and Pinion	Rack attached to the pathway of wiper and pinion as wheels	Pinion must be tightly attached with rack and connected to the wiper with bolt	the wiper must have a free motion on the board and must not stuck or slip	Pass