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This is a board designed for [opto-isolation](http://en.wikipedia.org/wiki/Opto-isolator). This board is helpful for connecti…
The SparkFun MIDI Shield board gives your Arduino-based device access to the antiquated, but still widely used and well suppo…
This 6N137 diode-transistor photocouplers consist of an LED, optically coupled to a high speed photodetector.
Opto 2 Click uses four TLP2770, 20Mbps low-power optocouplers, from Toshiba.
Opto 5 Click is a compact add-on board that provides uncomplicated safety isolation from the high voltage.