7. Motor sizing and Battery sizing - L-division-2020-2021-odd/Repo-01 GitHub Wiki
MOTOR SIZING:
We have vertical force-
Weight w=600g.
Acceleration due to gravity g=9.8ms^-2.
F = wxg = 600x9.8 = 5.880 N
Torque with respect to one gear--
Radius = 1.375 cm
T=Fxr (in kg-cm)
T=0.600x1.375
T=0.825 kg-cm
We got torque 0.4125 kg-cm and motor size 100 rpm.
Adopter Sizing:
| SI NO | COMPONENTS | CAPACITY | QUANTITY |
|---|---|---|---|
| 1 | Arduino UNO | 5V,100mA | 1 |
| 2 | DC Motor | 12v,300mA | 1 |
| 3 | PIR sensor | 5V,60mA | 1 |
| 4 | LCD | 5V,50mA | 1 |
| 5 | Buzzer | 12V,20mA | 1 |
TOTAL VOLTAGE AND CURRENT RATING
| Voltage Rating | Current Rating |
|---|---|
| 12V | 320mA |
| 5V | 210mA |
Factor of safety = 1.2
| Voltage Rating | Current Rating |
|---|---|
| 12V | 384mA |
| 5v | 252mA |