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Mikrocontroller Hardware

Arduino Uno R3

A good microcontoller to start with is the Arduino Uno. There are terrabytes of information available and you can get one nearly everywhere on this planet. The advantage of hardware revision R3 is, that the ATmega328P is monted on a socket, so that it can be replaced with ease.

Mikrocontroller Starterkit
Figure 1:
Arduino Uno R3
Microcontroller: ATmega328P
Clock speed: 16MHz
Program memory: 32kB
SRAM: 2kB
EEPROM: 1kB
Logic voltage: 5V
Input voltage: 7-12V
GPIOs: 20 (6 analog out, 6 analog inputs)
Current per GPIO: 20mA

Datasheet of the ATmega328P including technical specifications and command set.

Pin out

Pin No. Remark
0 RX - used for serial communication.
Do not use while communicating through USB.
1 TX - used for serial communication.
Do not use while communicating through USB.
2  
3 Analog out
4  
5 Analog out
6 Analog out
7  
8  
9 Analog out
Not available as analog out when using servo objects!
10 Analog out
Not available as analog out when using servo objects!
11 Analog out
12  
13  
A0 Analog in
Optional pin number: 14
A1 Analog in
Optional pin number: 15
A2 Analog in
Optional pin number: 16
A3 Analog in
Optional pin number: 17
A4 Analog in
Optional pin number: 18
A5 Analog in
Optional pin number: 19





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