UNO ch340 crash down

[orionwayfarer]

Hello everyone !

I am actually having issues running a Chinese uno ch340 for a simple delay application.

I used the blink sketch from example adding a secondary delay.

The goal is to activate the feeding screw of my multiple combustible rocket stuave that heat my radiator house.

For now it just need to turn clockwise 3sec and counter clockwise 1sec.

Everything works well with a few 6 relays 2 5v relay and 4 12v relay.

The problem is that the board stop looping a few minutes later, like 20mn.

I first try to ground the negative of my 12v battery to the circuit of my radiator, then to a piece of steel stabbed in the ground, it seems to give it a few working minutes more but the results is the same. I have to press reset on the board to keep my dragon feed...

Have you and idea ? do it needs a special kind of filter? Do the environment is not electrostatic safe ? Do i have to stop being selfish and buy an official Arduino board ?

If posted in wrong section let me know.

Thanks you for reading this long explanation

A picture of the beast working hard.

[ruilviana]

Hi,
Help us help you,
your project is in your head.
Post your code (using the appropriate </> tags) and post a schematic of your project.

[Wawa]

@orionwayfarer

Everything works well with a few 6 relays 2 5v relay and 4 12v relay.

Would you mind telling us how you power those relays, and the Uno.
If you power them through the Uno, then also tell us how hot the regulator on the Uno is.
If it's hotter than your stove, then you know what the problem is.
Leo..