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Posts tagged rain alarm circuit working

Rain detector circuit

Rain detector circuit LM1801, 2N2222, 4011B, NE555, LM555, BC547, BC107, 2N5825, BC548, BC168 Rain detector circuit 3 kinds of circuit diaghrams to dethect the rain water, the principle is the same, the difference is the component, and the results were good, of course should be in comparison to his own. Good luck making Rain detector […]

How to make usb mp3 player at home

How to make usb mp3 player at home? MP3 player circuit diagram using PCM2902 How to create audio mp3, audio circuit is not a very difficult thing, Usb driver control using IC PCM2902, then we just connect pin ic circuit according to this picture. Then connected to a headphone or a power amplifier in order […]

Volume control circuit Diagram

Volume control circuit and layout for audio amplifier Part Volume control circuit and layout : IC TL072

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