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The Arduino UNO is a widely used open-source microcontroller board based on the?ATmega328P?microcontroller and developed by?Arduino.cc.
A jump wire (also known as jumper, jumper wire, jumper cable) is an electrical wire, or group of them in a cable, with a connector or pin at each end, which is normally used to interconnect the components of a breadboard or other prototype or test circuit, internally or with other equipment or components, without soldering