Ooh there was a spark? It wasn't heat that caused the issue then... I think the iron generates heat by having a large current flowing through it, so yeah, touching that to a live electronic circuit; definitely a bad idea!
What I thought but disconnected the wrong Arduino at the time. Too many cables
@Bugno started
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Ooh there was a spark? It wasn't heat that caused the issue then...
I think the iron generates heat by having a large current flowing through it, so yeah, touching that to a live electronic circuit; definitely a bad idea!