R ratan lewis New Member Nov 11, 2005 #1 hi everybody, I need help to build a shutter lock-alarm system for my shop using pic ic having a 9v dry cell battery with bat low indicator. trying for quite some time now please help. <ratan_lewis@yahoo.co.in>
hi everybody, I need help to build a shutter lock-alarm system for my shop using pic ic having a 9v dry cell battery with bat low indicator. trying for quite some time now please help. <ratan_lewis@yahoo.co.in>
danielsmusic New Member Nov 11, 2005 #2 why a pic all you need is a weather proof microswitch at the bottom