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Audio amplifier for WTV020SD audio module Audio amplifier for WTV020SD audio module Details of LCD display     Details of LCD display Details of the Arduino with the control program of the entire home automation system.        Details of the Arduino with the control program of the entire home automation system. Details of the input printed circuit board with MCP23016             Details of the input printed circuit board with MCP23016 Details of the input printed circuit board with MCP23016       Details of the input printed circuit board with MCP23016 Details of the input printed circuit board with MCP23016         Details of the input printed circuit board with MCP23016 Details of the simple interface circuit between Arduino and the current sensor SCT-013-020 (or SCT-013-030)     Details of the simple interface circuit between Arduino and the current sensor SCT-013-020 (or SCT-013-030) Do it yourself relais board 230V Do it yourself relais board 230V On the right the output circuit board.di output         On the right the output circuit board.di output On top the 230V section.     On top the 230V section. Power supply Section      Power supply Section Relais board 230V  Relais board 230V Relais board for low voltage Relais board for low voltage The 230V top section The 230V top section The Arduino with the control program of the entire home automation system.        The Arduino with the control program of the entire home automation system. The audio module WTV020SD and the Real Time Clock DS1307 module.      The audio module WTV020SD and the Real Time Clock DS1307 module. The audio modulo WTV020SD      The audio modulo WTV020SD The current sensor SCT-013-020 installed    The current sensor SCT-013-020 installed The electronics boad of the automation system.Le schede elettroniche         The electronics boad of the automation system.Le schede elettroniche The impedance VK200 on the supply line of the relay boards to block the radiofrequency The impedance VK200 on the supply line of the relay boards to block the radiofrequency The input printed circuit board with MCP23016       The input printed circuit board with MCP23016 The input printed circuit board with MCP23016       The input printed circuit board with MCP23016 The LCD display for debugging and Arduino Mega 2560 with webserver and synchronization time DS1307 with internet functions     The LCD display for debugging and Arduino Mega 2560 with webserver and synchronization time DS1307 with internet functions The LCD display for debugging and the webserver on the left.d synchronization time DS1307 with internet functions     The LCD display for debugging and the webserver on the left.d synchronization time DS1307 with internet functions The LCD display for debugging.     The LCD display for debugging. The simple interface circuit between Arduino and the current sensor SCT-013-020 (or SCT-013-030)     The simple interface circuit between Arduino and the current sensor SCT-013-020 (or SCT-013-030) The VK200 impedance on the power line of Arduino boards to block the radio frequency The VK200 impedance on the power line of Arduino boards to block the radio frequency