Earlier today I noticed that this question appeared in the reopen queue:
https://electronics.stackexchange.com/questions/68791/stm32-potentiometer-connected-to-adc
I selected leave closed because while code has been added it's incomplete so the question is still unclear. In a duplicate question (now deleted) someone suggested editing the original question and voting to reopen it, but the OP seemed confused on how to do that and that was hours after it had appeared in the reopen queue, so it made me wonder:
Does an edit by the original author to a closed question cause it to appear automatically on the reopen review queue?
Do low rep users get the reopen button on their own questions?
Of course it may have been a 3K user voting to reopen that made it appear, or maybe the OP did it and expected some sort of instant result.