position = pinval_1 || (pinval_2 << 1) || (pinval_3 << 2) || (pinval_4 << 3); pinval_1, pinval_2, pinval_3, pinval_4 are the result of reading pins. What would I see from "position" using serial.println(position)? I using a 4 bit hex complimentar BCD switch and I know it works, seeing the right…

sketch formula line

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