Using Dc motor with a load torque of 4Wheel Drive (As image in attachment) to control the speed of the motor. I am applying the power source of rechargeable 6v ni-mh 1200mah battery.
With a electrical circuits (as attached below). As a result, the motor does not even start to spin. Whats the reason, whether its due low current/voltage or any other circuit problems. Since i am new to electronics, i am afraid to play with more voltage/current to dc motor because of expensive motor
Electrical circuit Details:
Resistor 1k ohm
transistor BC337-40
diode 4005
with no capacitor.
The first thing that I see is that the Arduino ground is not connected to the ground on the breadboard. Without that connection, the signals from the Arduino have no reference.
Also the motor is not wired right. The diode goes across the motor, not in series. The plus side of the motor to the plus of the battery and the minus side of the motor to the collector of the transistor.
You could lower the value of the base resistor to 220 ohms to turn the transistor on harder.
