So, months long project is almost done but now i have a problem with powering it.
So, i am using one UNO and one MEGA board. Uno has just 6 LEDs connected to it but MEGA has 12 7 segment displays that i run on full brightness pretty much most of the time. Most of 7 segment displays show 5-6 digits so they draw a lot of juice. Also, i still need to add like 20 LEDs to MEGA....
I am currently using cheap LM2596 power supply
This works but i would not rely on it to work safely forever, it does get hot and i was even thinking of installing a small Noctua fan 40x40mm, i did a test and it did a great job but again, i would then have a cooler running all the time...
Another idea came to my mind, to connect TWO of these power supplies on a vero board, connect their grounds together and then make a separate VCC lines. Then i could power arduino boards from one, perhaps even a few displays and remaining displays on the other. This way they should run cooler i think. Is this a good idea?
Are there any more powerful PSU's?
Any other ideas?
Any help would be highly appreciated!