Research Article

Low-Cost SCADA System Using Arduino and Reliance SCADA for a Stand-Alone Photovoltaic System

Table 1

Specifications of Arduino board.

Specifications

MicrocontrollerATmega328
Operating voltage5 V
Input voltage7–12 V
Input voltage (limits)6–20 V
Digital I/O pins14 (6 PWM outputs)
Analog input pins6
DC current per I/O pin40 mA
DC current for 3.3 V pin50 mA
Flash memory32 KB (ATmega328)
SRAM2 KB (ATmega328)
EEPROM1 KB (ATmega328)
Clock speed16 MHz