Quote:
Originally Posted by ozstockman
I've made my own too, but it was a cable for Palm DSLR software. Now I'd like to move to DSLR shutter software wich runs on PC but can't find 4n26/4n33 optocoupler specified here in any local store. There was a online one which has them in stock but I waited three weeks while they process my order and canceled it at the end. I probably can try to re-use the one I made for Palm but I guess it requres some modification to be done to wires connection. |
Any optocoupler will do. And they all have the same pin-out (The only difference between various types is the number of devices in the package, and type of receiver: transistor, darlington or FET).
You can even build your own optocoupler, using IR LED and phototransistor, properly aligned.....
Also, there is nothing wrong with simple transistor design, the only advantage may be the better isolation in case of severe static discharges and/or mains leakage in AC adapter (if you use one at all) .