Arduino Uno disconnects when operating the relay or valve sometimes

[adam]

@rassim803

Hello, I solved my issue by adding the function Ethernet.Maintain() to the beginning of the loop which will always try to get the connection back as soon as it is disconnected.

That’s interesting…Ethernet.Maintain() just renews a DHCP address so it sounds like you might have some IP address conflicts. You should check your network for static IP addresses.

[rassim803]

Sorry @adam it seems that what I mentioned before was not correct and the issue wasn’t solved.

Actually, I designed my own IOT platform, almost finished everything.

Thanks

[wmontg5988]

As a side note to anyone reading this thread, if you’re trying to activate a relay or other device from an arduino board, remember the current limitations of the board. If you exceed current limits, the voltage regulator will go into to protection mode and will cut output power and/or hang the cpu causing you to lose connection. I witnessed this myself with an uno that kept dis-connecting and I had to reset or power down/up.

Just Sayin.

William