mortonkopf
Well-known member
Hi all, I am changing from using usb-midi input for driving some CV outputs for an analogue synth, to using midi DIN. The DIN input seems to be working on breadboard when testing using serial monitor. Has anyone been using these SFH618 opto-couplers, I am after some advice on the resistor values. I am currently using 220ohm on the input and 560ohm on the output, as in the diagram. Like I say, seems to be working, but wanted any input from those who have used it, before i start soldering things up.
The data sheet is here: http://pdf1.alldatasheet.com/datasheet-pdf/view/253546/VISHAY/SFH618A-2.html
and the product page for Maplin is here: http://www.maplin.co.uk/p/low-current-opto-coupler-cy94c
many thanks for any suggested values, m
The data sheet is here: http://pdf1.alldatasheet.com/datasheet-pdf/view/253546/VISHAY/SFH618A-2.html
and the product page for Maplin is here: http://www.maplin.co.uk/p/low-current-opto-coupler-cy94c
many thanks for any suggested values, m
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