Source google image: https://upload.wikimedia.org/wikipedia/commons/thumb/2/26/Raspberry_Pi_B%2B_illustration.svg/270px-Raspberry_Pi_B%2B_illustration.svg.png
Schéma electrique raspberry
Source google image: https://upload.wikimedia.org/wikipedia/commons/thumb/2/26/Raspberry_Pi_B%2B_illustration.svg/270px-Raspberry_Pi_B%2B_illustration.svg.png