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The audio control circuit of HN911

2014-11-17 23:23  
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The audio control circuit of HN911
See as the figure, the circuit consists of the heat releasing infrared detection module, relay control light circuit, curses making circuit and AC step-down rectifier circuit, etc. When there are people coming in the chapel, the internal lighting lamp is glowing automatically and the Buddhist scriptures sound is generated; when the people are out, the light and sound are both gone. The circuit can be used in the chapel and sutra mansion for automatic duty and anti-thief.