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  ______    _____    _    _     ______    ______  
 /_____//  |  ___|| | || | ||  /_   _//  /_   _// 
 `____ `   | ||__   | || | ||   -| ||-     | ||   
 /___//    | ||__   | \\_/ ||   _| ||_    _| ||   
 `__ `     |_____||  \____//   /_____//  /__//    
 /_//      `-----`    `---`    `-----`   `--`     
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發送短信 : Low power low-dropout (LDO) regulator for wireless sensor node (WSN)