Hey guys, Im working on this project Ultrasonic Pest Repeller with this circuit
http://electronics-diy.com/electronic_schematic.php?id=108
An op-amp CA3130 was used to trigger CD 4017. Why did the designer opted to use CA3130 instead of 555 IC? Can i use 555 as an oscillator instead of CA3130?
http://electronics-diy.com/electronic_schematic.php?id=108
An op-amp CA3130 was used to trigger CD 4017. Why did the designer opted to use CA3130 instead of 555 IC? Can i use 555 as an oscillator instead of CA3130?