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3
Digital I/O
GND
4
5
AREF
SDA
6
SCL
7
RESET
8
Button
D13 LED
9
Arduino MEGA has 14 digital input/output
pins (of which 6 can be used as PWM
outputs).These pins can be configured as
digital input pin to read the logic value (0 or
1). Or used as digital output pin to drive
different modules like LED, relay, etc.
Using pinMode(), digitalWrite(), and
digitalRead()
Reference voltage (0-5V) for analog inputs.
Used with analogReference().
Configures the reference voltage used for
analog input (i.e. the value used as the top
of the input range).
IIC communication pin
IIC communication pin
You can reset your Arduino board,
There is a built-in LED driven by digital pin
13. When the pin is HIGH value, the LED is
on, when the pin is LOW, it's off.
functions.
GND
69
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