tag:blogger.com,1999:blog-8622007552114030374.post58860887092222236..comments2024-01-03T20:44:11.502-08:00Comments on simple electronics: cellphone call detector using 555 timerUnknownnoreply@blogger.comBlogger7125tag:blogger.com,1999:blog-8622007552114030374.post-35456566007417685172016-07-11T18:59:43.189-07:002016-07-11T18:59:43.189-07:00Replace this IC with ne555 timer but you need to p...Replace this IC with ne555 timer but you need to provide at least 5v to the IC. Also put a 330R resistor with LED. Other wise it will blow the LED.<br />Anonymoushttps://www.blogger.com/profile/18167172330964270826noreply@blogger.comtag:blogger.com,1999:blog-8622007552114030374.post-69629361466078669102012-08-02T05:32:28.760-07:002012-08-02T05:32:28.760-07:00hi will u plese send 555 propertieshi will u plese send 555 propertiesAnonymoushttps://www.blogger.com/profile/04622887913638245024noreply@blogger.comtag:blogger.com,1999:blog-8622007552114030374.post-58520422108991879132012-08-02T05:32:09.358-07:002012-08-02T05:32:09.358-07:00hi will u plese send 555 propertieshi will u plese send 555 propertiesAnonymoushttps://www.blogger.com/profile/04622887913638245024noreply@blogger.comtag:blogger.com,1999:blog-8622007552114030374.post-87518790196274988712012-04-19T23:07:05.367-07:002012-04-19T23:07:05.367-07:00This does use a 555 IC. It just uses a CMOS type. ...This does use a 555 IC. It just uses a CMOS type. It may work a standard 555 but will use more power.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-8622007552114030374.post-1968737957411421082011-07-18T08:43:44.593-07:002011-07-18T08:43:44.593-07:00can u plz send me schematic diagram of cellphone d...can u plz send me schematic diagram of cellphone detector using ic555?<br />it will helpful to do my mini project .if its is a simpler circuit i will thankful to you...indhuhttps://www.blogger.com/profile/17839186985917548324noreply@blogger.comtag:blogger.com,1999:blog-8622007552114030374.post-72226573455436680332011-07-18T08:41:42.365-07:002011-07-18T08:41:42.365-07:00thank u somuch for ur help...but ineed a circuit o...thank u somuch for ur help...but ineed a circuit of cellphone detector using ic555indhuhttps://www.blogger.com/profile/17839186985917548324noreply@blogger.comtag:blogger.com,1999:blog-8622007552114030374.post-50447471938097280182010-11-07T00:02:00.667-07:002010-11-07T00:02:00.667-07:00simple projectssimple projectsAnonymousnoreply@blogger.com