shashidhar1990
Junior Member level 1

hi everybody on the forum,,,,please help me
now we are using 4 wire sensors/detectors interfacing to the panel where four wires consists of 12vdc, gnd ,alarmin and alarm out, where alarm out is connected to atmega microcntroller's port pins where it reads any signal change.
now we are planning to interface only two wire detectors to the panel, which how could it be done?? which two wire needed to be taken to interface it ? is there hardware or software changes required ???
now we are using 4 wire sensors/detectors interfacing to the panel where four wires consists of 12vdc, gnd ,alarmin and alarm out, where alarm out is connected to atmega microcntroller's port pins where it reads any signal change.
now we are planning to interface only two wire detectors to the panel, which how could it be done?? which two wire needed to be taken to interface it ? is there hardware or software changes required ???