Matching Pairs Match electronic ComponentsOnline version Match electronic Components by Oscar Eduardo Ospina R 1 are red and green and emit light when electricity passes through them 2 has a circular shape and measures ambient pressure 3 has two long legs connected to a blue head and measures the temperature 4 a long black cable used to connect the Arduino Uno to the computer 5 cylinder shape with coloured bands, they reduce the current flowing in a circuit 6 is a white support used to easily connect electronic components 7 has input and output pins and works like a simple computer 8 have various colours and are used to connect components to conduct electricity