1-What are k7-k14 in the circuit?
k7-k14 input from every sensors . but i want used k7-k14 for output port (relay control) instead d2-d5 port .
2-Are the relays controlled from PC?
no. i want control from gsm majol (gm-47) by sms.
3-I can do a 8 relay project using PIC microcontroller.
please help me . no problem you can used every microcontroller.