Figure 0210/1 The functioned Clapper Circuit
After a hard try on constructing the circuit, we finally come out with a functioned one. Again, proved that our hypothesis where adding a LED as output between the 2N2222 Transistor and R11 is true.
We had our measurements on the voltage across the lighten LED. It shows that the LED used approximately 3V to function. We also had a try on observing the waveform across the LED, the waveform is shown as below, which is full of noises. We are not sure whether the waveform performed is true or not. Further study on the waveform will be done.
Figure 0210/2 Observing the waveform across the LED.
Figure 0210/3 Waveform performed.
Below is the video on how the Clapper Circuit functions. When the signal (soundwaves) is given, the microphone receives the signal and send it to the 741 OP-Amp, 555 Timer and 4013 Dual D Flip-flop to process. After then, the SPST REED Relay which act as the switch will be connected to lighten the LED. Another signal is then given to switch off the LED. Further study on how these components work in the circuit will be done and presented in our report.
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