I've to have a 2 Ardunio and 1 Netduino in a board, they are connected to +100 component. All I need is less than 5A so I bought a 12v 6A power supply and need to ask some questions so I avoid doing anything stupid.
- Is it safe to take a 5V (after passing the 12V to 7805 or some other way to get 5V) and give it to the 2 Arduino and the 1 Netduino?
- Is it better to give each component it's own fuse or should I just use fuses for major parts?
- I can give each component it's rated voltage and the current will be given to each component as it needs from the power supply knowing that I should not take more than 40mA from the Arduino pins, am I right ?
Sorry but this project is major and I'm more of programmer than electrical engineer :)