Homebuilt ROVs Forum

Hi, I am using this ESC for my ROV and planned to give power to Arduino (UNO R3) from BEC 5V output of ESC to Arduino Vin. But the Arduino website says " If supplied with less than 7V, however, the 5V pin may supply less than five volts and the board may be unstable."
So can I supply 5V to Arduino Vin or just supply 12V which is input power to ESC?

I would just stick with supplying 12v to the Uno.

There is another way to look at this. It will depend on what you are powering with the Arduino. If you are using the Analog inputs or outputs, then stick to 12V. (The Analog requires a stable 5v reference, which is not possible when you supply less then 6v to the Arduino. If you are powering other items from the Arduino, it is also a good idea to stick to the 12V. (such as controllers, servos, etc...)

In conclusion, you COULD use the ESC 5v, but I would not recommend it...

Thanks everyone. I'll stick with 12V supply.