I have a ATmega328p-pu MC and I know the in/out pins but there are more then 1 ground, and I didn't see an "IN" power for the MC. does any one have a diagram for the MC that's in layman's terms?
Here are 3 WEB sites for you to review:
http://www.pighixxx.com/downloads/the-definitive-arduino-pinout-diagram/
is the "vcc" the pin I would supply power to the MC?
Yes VCC is connected to +5Volts on the 328.
LarryD:
Yes VCC is connected to +5Volts on the 328.
which "VCC"? they have two, one on each side?
Any and all VCC and AVCC pins must be connected to 5V.
CrossRoads:
Any and all VCC and AVCC pins must be connected to 5V.
when you say must, do you mean I have to have 5v to that pin or that pin can only take 5v?
joshp689:
CrossRoads:
Any and all VCC and AVCC pins must be connected to 5V.when you say must, do you mean I have to have 5v to that pin or that pin can only take 5v?
I have to have 5v to that pin or that pin can only take 5v?
Yes & mostly Yes.
You must supply 5V to that pin (VCC/AVCC power the chip internally).
Absolute Max is 6V, no more than 5.5V is recommended per the datasheet.