Alternative autofeeder wiring

[Rob F]

I wanted to post this diagram so I'll jump in. :) You should be able to get that 2N3904 at a local electronic store if they sell components, its quite popular and if they don't have that one any NPN transistor should work as current isn't an issue for the feeder. If they have that they should also have resistors. You can also get it online at mouser or digikey but shipping is expensive for a cheap part. 

https://www.mouser.com/productdetail/cen...W1QkrbVyPn

I did wired up my feeder as suggested and it is better, thanks for sorting it out and letting me know Belaya. :)

Here's a diagram for anyone who wants to update, using this method you shouldn't have to worry about cable length. On my next set of boards I'm going to have this built in but this is how you upgrade.

You can use the image in original post to see where to connect to feeder. In Belaya's image the wires are as follows.

Orange = +3.3v
Green   =  Ground
Brown   =  Signal from NPN