The circuit presented, found in a year 2000 publication, is formed by two alarms that trigger cicadas independently. One set can be local and the other remote and the operation is from the 110 V or 220 V power grid.
The circuit presented, found in a year 2000 publication, is formed by two alarms that trigger cicadas independently. One set can be local and the other remote and the operation is from the 110 V or 220 V power grid.