12 v and how much amp??

Hi

My project contain

    1. Dfplayer
  1. 1.I2c lcd disply
  2. 1.Adafruit stepper motor driver v2
  3. 3 Servo motor
  4. 1 stepper motor (12v1.2A)
  5. 2 dc motor

Currently I am providing 12v 2amp power supply to arduino mega and adafruit motor driver... All are working for few seconds and after that due to low voltage it's reset automatically.

Can you please suggest me how much .amp will best for my project.

abhixs:
All are working for few seconds and after that due to low voltage it's reset automatically.

First of all try the project with one item disconnected for each test. That should tell you which device is causing the overload - assuming there is an overload.

If you are satisfied that it is an overload and not some other problem (such as a short circuit) then try a 4 amp (or bigger) power supply.

...R

abhixs:
Hi

My project contain

    1. Dfplayer
  1. 1.I2c lcd disply
  2. 1.Adafruit stepper motor driver v2
  3. 3 Servo motor
  4. 1 stepper motor (12v1.2A)
  5. 2 dc motor

Please provide links or datasheets for each piece of hardware, then we know exactly which motor, which servo, which stepper, which Adafruit board...