Description: 51 AT89c52, photoelectric sensor, switch back, if a little product transitions, trigger buzzer happening, you can play the role of a simple anti-theft
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防盗科创
........\fangdao
........\fangdao.c
........\fangdao.hex
........\fangdao.lnp
........\fangdao.LST
........\fangdao.M51
........\fangdao.OBJ
........\fangdao.Opt
........\fangdao.plg
........\fangdao.Uv2
........\fangdao_Opt.Bak
........\fangdao_Uv2.Bak
........\STARTUP.A51
........\STARTUP.LST
........\STARTUP.OBJ
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