7. RESOURCE SPECIFICATION - H-Division-2021-2022-Even/Repo-04 GitHub Wiki
| SL.No | Name of the item | Current | Specification | Quantity | Weight(in g) |
|---|---|---|---|---|---|
| 1. | DC Motor | 60mA | 5V 30rpm | 4 | 1200g |
| 3. | Arduino | 73.19mA | Mega 2560 | 1 | 37g |
| 4. | IR sensor | 20mA | -- | 1 | 11g |
| 5. | LCD display | 5mA | -- | 1 | 35g |
| 6. | LED light | 20mA | -- | 2 | 14g |
| 7. | Breadboard | -- | -- | 1 | 79g |
RPM CALCULATIONS
Mass (m) = 4.00 kg
Radius (r) = 3 cm
Force, F = mg = 4.0*9.8 = 39.2 N
Torque, T = F * r = 39.2 * 3 = 117.6 Ncm = 11.76 kgcm
Total torque Tₜ = Torque * F.O.S = 117.6*1.5 = 176.4 N = 17.64 kgcm
Torque on each motor T = 17.64/4 = 4.04 kgcm
Motor selected: 60RPM 12V Low Noise DC motor with Metal gears-Grade A
POWER ADAPTOR CALCULATIONS
Let I be total current required I = 800mA * Number of Motors * FOS
= 800mA * 4 * 1.2
= 3840 mA
I = 3.84 A
Adaptor selected: 12V 4A adaptor