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2. ANSCHLUSSBELEGUNG
7 to 12 VDC
input
2.1 x 5.5 mm
Male center
positive
Not connected
I/O reference
Voltage
RESET
3.3V Output
5V Output
Ground
Ground
Input voltage
Analog Input 0
Analog Input 1
Analog Input 2
Analog Input 3
C)SDA
2
(I
C)SCL
2
(I
ATmega328
Mikrocontroller IC
16MHz
Voltage
crystal
regulator
GND
ATmega16U2
Microcontroller IC/USB Controller
ICSP for
VCC
ATmega328
MOSI
USB-B port
to computer
Reset button
ICSP for USB
interface
C)SCL
2
(I
Pin-13 LED
(SPI)SCK
(SPI)MISO
(SPI)MOSI
(SPI)SS
RESET
SCK
MISO
Interrupt 1
Interrupt 2
TXD
RXD
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