Can it power a 5Volt device when using the USB as its power sourse ?
Why are there two Ground pins , one for the 5V and one for the 3.3volt ?
If I used a 9V battery as a power supply, or had a 9V power pack using AA batteries. Woud the AA 9Volt supply more amps or just last longer ?
I have gathered that the pin numbers of the actual chip are not the same as the pin/headers of the board.
Is the Tx , RX meantg for wiring up possibly a UHF setup like the Xbee ? It cant have anything to do with the programming of the board !
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