Showing posts with label Alarm/ Buzzer. Show all posts
Showing posts with label Alarm/ Buzzer. Show all posts
Rangkaian Ding dong bel Rumah

Rangkaian Ding dong bel Rumah

This simple circuit an low cost ding dong bell suitable for calling bell purposes. It is made around IC 8021-2 . IC 8021 has an in-built ...
Rangkaian Alarm LDR  anti maling

Rangkaian Alarm LDR anti maling

Anti-theft alarm circuit it produces an audible alarm when fridge is left open for a preset time.Rangkaian This versatile alarm is based on...
Rangkaian Pembangkit Melody|Musik Mainan

Rangkaian Pembangkit Melody|Musik Mainan

Circuit of musik| melody generator you can make using an IC.The UM66 series are CMOS IC’s designed for using in calling bell, phone and ...

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