Fry Counter Berbasis Sensor Optocoupler Dengan Filter Tegangan Analog

Indonesia as an archipelagic country with a large water area has the potential for fisheries cultivation. Often there are errors in calculating fry that are done manually and fry counting instruments are relatively expensive and difficult to obtain on the market, so a relatively cheap, simple, high-sensitivity and high accuracy fry counter is needed, therefore, research conducted on fry counter…