Our main line frequency is 50hz. Our project is as name mentioned we are monitoring our main line frequency. If this frequency drop below then 49. Our electric supply grid system will collapse.
If we are monitoring this value regularly then we can protect our grid system.
For measuring this frequency, we are reading this low & high period frequency , make some math calculation & show result on LCD. Arduino is making this calculation & showing result on LCD.
Project customization is also available.
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