My first thought was "that looks like a voltage comparator", firstly because of the triangular shape of the symbol and the part number looked vaguely familiar. Triangle symbols are usually operational amplifiers and voltage comparators. 555 when shown on circuit diagrams tend to be square shaped. So it being a 555 never entered my head.
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This could not have come at a better time! Thanks Chris!
Clever circuit! I think it takes advantage of a "window comparator".
Yes
My first thought was, “That looks like a 555 timer.” Cool.
My first thought was "that looks like a voltage comparator", firstly because of the triangular shape of the symbol and the part number looked vaguely familiar.
Triangle symbols are usually operational amplifiers and voltage comparators.
555 when shown on circuit diagrams tend to be square shaped. So it being a 555 never entered my head.