.. and updated version of my optical speed controller sensor! The original sensor I was using was a victim to pandemic stock levels and I wasn’t happy with the IR filter used. This version also was designed to fit into half of a small enclosure - I would put a sticker or label over the trimmer in the end (or use fixed resistors) but needed to have it available to prototype the comparator sensitivity. I will probably glue dot it to the plinth, no components are soldered to the bottom of the board.
I did spec out a actual jack on the board, but having issues finding a mini stereo connector that is more or less the same diameter as the barrel, ensuring it doesn’t stick out below the enclosure - not sure if anyone has a recommendation there. In fact a male-female extension cable that is low profile would work just fine too