Dear forum members,
I am using:
- An Arduino mega 2560, which according to this page, should be powered with 7-12V, 500mA-1A.
- A GSM module which should be powered 4.6-5.2v at 1-2A. Hence, since it draws too many amperes, it cannot be powered from the Arduino 5V pin.
What is the best way to supply power to this system, without using two AC/DC adapters ?
I was for example thinking about using a 9V 3A AC adapter and:
- Direclty power the Arduino from it.
- Use a power regulator down to 5V before powering the module.
Is it a good idea ?