7. RESOURCE SPECIFICATIONS - H-Division-2021-2022-Even/Repo-02 GitHub Wiki
| SL.No | Name of the item | Specifications | Current specifications | Quantity | weight |
|---|---|---|---|---|---|
| 1 | DC Motor | 45 rpm | 60mA | 2 | 260 g |
| 2 | Micro controller | Arduino Mega 2560 | 50mA | 1 | 37g |
| 3 | IR Sensor | - | 20mA | 1 | 11g |
| 4 | LED lights | - | 10-20mA | 2 | 7g |
| 5 | Breadboard | - | - | 1 | 79g |
| 6 | Motor clamp | - | - | 2 | 266.9g |
| 7 | Tri spoked wheel | - | - | 2 | 566.4g |
| 8 | Wheel | - | - | 2 | 65.92g |
MOTOR SIZING
Mass(m) = 2.05 kg
Radius(r) = 3cm
Force=mg = 20.09 N
Torque = F*r = 60.27 Ncm = 6.15 kgcm
Total torque = Torque * F.O.S = 6.15 * 1.5 = 9.225 kgcm
Torque on each motor = 9.225/2 = 4.6 kgcm
Motor selected for bot = 45 RPM 12V Low Noise DC Motor with metal Gears - Grade A
POWER ADAPTOR CALCULATIONS
Let i be the total current required
i= 800 mA * Number of motors * FOS
i = 800 mA * 2 *1.5
i = 2400 mA
i = 2.4 A
Adaptor selected is 12V-3A .