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OK, here it is.
The first schematic is of that small board, as it is.
The second one is what it should be.
The intervalometer connector is connected at IN4, the rest of channels are paralleled (with associated outputs) to boost loading capacity (as this Jaycar solenoid (marked on schematic as relay) will draw 250mA at 6 V.
NB: this solenoid is not supposed to be used on 12V continuously..
So instead of 12, the whole thing should be powered from 4-6V, not from 12V as indicated on the previous schematic.
Last edited by bojan; 27-02-2013 at 02:42 PM.
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