EMERGING TRENDS IN COMPUTING
INTERNET OF THINGS IOT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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USB connection
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Internal battery
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Charger
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Adapter
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Detailed explanation-1: -4. How power supply is done to RPi? Explanation: The unit uses a Micro USB connection to power itself (only the power pins are connected so it will not transfer data over the connection). A standard modern phone charger with a micro USB connector will do, but needs at least 700 mA at 5 volts.
Detailed explanation-2: -Mains will usually be AC, but most electronic gadgets (Pi included) will be DC. This is normally handled by the plug in adaptor which will reduce the voltage AND rectify it into a DC supply. Usually this is done via a switching PSU these days as they’re lighter, more efficient and just as cheap.
Detailed explanation-3: -With this power supply, you can power the Raspberry Pi at full load as well as up to 1.2A across the four USB ports. The power supply still has about 0.5A of output power to spare, so even at the maximum current supported by the Raspberry Pi, the power supply is not at it’s absolute maximum.