Relay on I2C port cause M5Go to restart.

[ajb2k3]

I'm testing the relay on Port A as its listed as a digital I/O port.
When triggered the relay works fine but when it releases the M5Go restarts.
Is this just me or an issue with the relay module.

[ajb2k3]

Ok its missing the back feed diode.

[m5-docs]

Hello @ajb2k3,

I remembered the question you said.

Anti-back charge diode.

Is it convenient for you to give detailed information? Especially the photos

[ajb2k3]

@m5-docs I sent the diagrams to the support operator.
It is fine on the I/O port (B) but on A it cause the trip. I am worried that this could cause premature failure of io pins.

[m5-docs]

@ajb2k3 the support operator?

[ajb2k3]

heres an image showing the flyback/bypass diode missing from the relay

[m5-docs]

@ajb2k3 Thanks a lot !

[m5-docs]

@ajb2k3 Can I know the source of your picture?

[ajb2k3]

@m5-docs said in Relay on I2C port cause M5Go to restart.:

@ajb2k3 Can I know the source of your picture?

Sorry, Gimme a sec to find it. Its a common diagram of the flyback/bypass diodes connected in relay modules

[ajb2k3]

@m5-docs https://electronics.stackexchange.com/questions/115857/flyback-diodes-and-relays