You can also use the "'''Library Manager'''" to ease the installation of the BMP280 library.
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From the "'''Sketch'''" menu, select the sub-menu "'''Include library'''" --> "'''Library Manager'''" like shown on the picture here under.
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[[Fichier:ENG-CANSAT-BMP280-00.png|480px]]
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In the library manager, key-in the value "'''NeoPixel'''" in the search box. Then click on the install button in the front of the '''Adafruit BMP280 Library by Adafruit'''.