Download Wire.h Library For Arduino ^new^
If you see "Wire" by Arduino (usually version 1.0 or higher) listed in the results, it is already installed. You do not need to do anything.
#include <Wire.h> A common knee-jerk reaction for beginners is to immediately search: download wire.h library for arduino
If you found this guide helpful, bookmar the official Arduino reference page for Wire.h to learn about advanced functions like setClock() , onReceive() , and onRequest() . If you see "Wire" by Arduino (usually version 1
Open Arduino IDE -> File -> Examples -> Wire -> Scanner . Upload that sketch. If the Serial Monitor prints "No devices found," your library is perfectly fine—your wiring is the problem! download wire.h library for arduino