Hardware Reference
In-Depth Information
AREF
GND
D13
D12
D11/PWM
D10/PWM
D9/PWM
D8
Reset
+3.3V
+5V
Gnd
Gnd
Vin
Arduino
Module
D7
D6/PWM
D5/PWM
D4
D3/PWM
D2
Digital1/TX
Digital0/RX
TST
3V
X
Y
Z
GND
Analog0
A1
A2
A3
A4
A5
ADXL335
Accelerometer
MADE
IN I TALY
Figure 8-13
ADXL335 accelerometer connected
to an Arduino. Shown here is an
Adafruit breakout board for the
ADXL335. This accelerometer
operates on 3.3V, so its output
range is also 0 to 3.3V. The micro-
controller's analog reference pin
is connected to 3.3V as well, so it
knows that the maximum range of
the analog inputs is from 0 to 3.3V.
DIGITAL
(PWM
~
)
-
+
L
UNO
ON
TX
RX
ARDUINO
RESET
ICSP
POWER
ANALOG
IN
