I am designing a power control panel for the room of many applicants. In the panel there are several micro switches available for the user to turn the appliances ON/OFF. At the end of the micro-switch there I place relay for controlling load of 220V (AC). I am powering the circuit by 12 volts.
I want to freeze the state of relays either ON or OFF such that; when user presses the micro-switch once, the relay should turn ON until the user presses the switch again.
Which component should I use to maintain the state of relay?