On 18.01.12 00:59, gene heskett wrote: > Well, the only marks on the package show on top of it and they are > confusing. On about a 20x blowup of the pdf'd brochures page showing the > pin names, it looks like this for a bottom view. > > led end sensor end > |-------------------------------| > | K . .vcc | > | 0 .vo 0 | > | A . .gnd | > |-------------------------------| > > And the footprint in the library has both + terminals on the same side.
If that's the library which I posted, then that's a misinterpreation, AFAICT. Please remember that the schematic symbol conveys _no_ pin location information. Gene, have you found this pinout issue in the board editor? (Click on the 5th icon in the horizontal toolbar near the top of the schematic editor) The library editor can also be used to check the physical pinout, but that's harder to explain when you can't see my hand-waving. I'll attach a board and a schematic file which demonstrate that the anode and vcc pins are in fact on opposite sides of the package. If you copy the files into a separate new project, open the schematic, and say yes to opening the board, the latter reveals the physical relationship of these pins. I've placed one device on the underside of the PCB, so we see a bottom view of the pins for that device. > And its this ambiguity in the docs on this stuff that cost me the last 3 of > a different type device about 18 months go when I was gung ho to do this > then, and it all smoked in about 10 milliseconds when I applied 5 volts. Yeah, this one lets the magic smoke out at reverse bias of only 3v on the LED. If my interpretation of the Honeywell datasheet was wrong, it'll take me less than a minute to swap pins. It took me a while to get the hang of eagle. Each of these apps needs a realignment of thinking, before it's straightforward. Erik -- An expert is a man who has made all the mistakes that can be made in a very narrow field. - Niels Bohr
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