An optoisolator or optocoupler is a cool little device that allows you to completely separate sections of an electrical circuit. The 4N25 family is an industry standard single channel
Isolation test voltage 5000 VRMS
Interfaces with common logic families
Input-output coupling capacitance < 0.5 pF
Industry standard dual-in-line 6 pin package
Compliant to RoHS directive 2002/95/EC and in accordance to WEEE 2002/96/EC
Teensy Header Kit
These headers are made to work with the Teensy 3.2 and Teensy LC development boards. Each kit of headers makes your Teensy breadboard compatible and will allow for stacking a Teensy..