SparkFun Electronics will be closed on November 26, 2020 and November 27, 2020 for the Thanksgiving holiday. We will begin normal operations at 9:00 AM Mountain Time on November 30, 2020.

Please see all COVID-19 updates here as some shipments may be delayed due to CDC safety and staffing guidelines. If you have an order or shipping question please refer to our Customer Support page. For technical questions please check out our Forums. Thank you for your continued support.

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Buttons and Switches Cables Capacitors Connectors Data Loggers Diodes Encoders ICs Lasers LCDs and OLEDs LEDs and Illumination Logic Magnets Oscillators Potentiometer Power Resistors RTC Transistors

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SparkFun Opto-isolator Breakout

Out of stock BOB-09118

This is a board designed for [opto-isolation](http://en.wikipedia.org/wiki/Opto-isolator). This board is helpful for connecti…

$4.95