This circuit is a doorbell with counter, that means it counts how many
times the bell is triggered. It uses a chip synthesizer sound, the
HT-2811 ms nothing prevents you from using another device sound
generator.
Simple Doorbell with Counter Circuit Diagram:
The HT-2811 reproduces the sound of a "ding-dong" doorbell. Besides this ic, the circuit includes a CMOS 4026 and Display Driver IC which counts the total number of visitors.
Simple Doorbell with Counter Circuit Diagram:
The HT-2811 reproduces the sound of a "ding-dong" doorbell. Besides this ic, the circuit includes a CMOS 4026 and Display Driver IC which counts the total number of visitors.
Simple Doorbell with Counter
Reviewed by SYLVESTER ANWAR MASHI
on
07:46
Rating:
Reviewed by SYLVESTER ANWAR MASHI
on
07:46
Rating:
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