6. Virtual implementation - G-Division-2021-22-EVEN/Repo-06 GitHub Wiki
6.1 Bill of materials

6.2 Flow chart
INTGREATED FLOW CHART

BLOOMING UNIT FLOW CHART

SENSING UNIT FLOW CHART

6.3 Circuit
Arduino with IR sensor

Arduino with servomotors

Arduino with both IR sensor and servomotor

Final Circuit Design

6.4 3D Model
Servo Motor
Part 1 of servo

Part 2 of servo

Part 3 of servo

Body of servo

Ultrasonic Sensor
Petal
L Clamp
Hexagon Nut
Stem

Final Assembled Prototype

6.5 Motor sizing and battery adapter
We are using servo motor for blooming of the petals.
Dimension : 244(cm) = 32cc
-
Density:1g/cc
-
U-coefficient of friction
Force required = U*mg
= 0.3*1*2*4*4*10
= 0.0096N
we are using 3cm long arm
Torque = 0.096 * 3 = 0.288 Ncm
FOS = 1.5
Total torque = 0.288 * 1.5 = 0.432 Ncm
SG90 servo motor is enough
Battery adapter:
petals = 6
adapter= 6* 650 rpm = 3900N
battery is 5V
FOS = 1.2
Total = 1.2 * 3900 = 4680 N/cm