Hi, I'm powering 2 DC motors with a power supply module with 5V. Will that be enough to control the 2 motors if I plan to use them to drive wheels of a small robot? Thanks!
Welcome!
We don't know enough about your supply, or your motors, to be able to tell you anything useful. Links to items, or specifications of them, are required.
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You will also need drivers for your motors. No Arduino can directly drive a motor.
The key specifications for a power supply is the rated output voltage and the current capacity (the amount of current that the supply can provide without the voltage drooping).
The key specifications for a motor, in terms of choosing a power supply and driver for it, are the motor rated voltage and the stall current.
Choose the motor driver and the motor power supply based on the stall current of the motor and the required motor supply voltage. The stall current can be 10 times or more of the running current. The stall current will be drawn, briefly, every time that the motor is started. The stall current should be listed in the motor data sheet. In the absence of a data sheet, the stall current can be estimated.
That depends on the power supply, the motors, the robot size, robot weight, tire size, desired forward speed and the terrain the robot has to navigate.
One place to start your research is here: https://www.societyofrobots.com/
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