I accidentally purchased a GP2Y0D21YK0F when I meant to get a GP2Y0A21YK0F. The digital version only sends a high or low signal depending on whether there is an item within a preset distance. The analog version gives a 0-2.5V analog voltage depending on the distance (which is what I really wanted) Unfortunately, with a tight deadline & no time to reorder, I decided to see if the analog signal was still somewhere on the PCB, just not on the connector. A quick probe with my trusty scope says “yes”!
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