Door open alarm using IC 555
Most of us are held up with our busy life, be it at office or at home. Often due to our workload and carelessness we tend to forget to close the doors in our office or at home. This habit…
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Most of us are held up with our busy life, be it at office or at home. Often due to our workload and carelessness we tend to forget to close the doors in our office or at home. This habit…
Read more