hustla7 Posted May 28, 2007 Report Share Posted May 28, 2007 Hi, I'm Nitish and I love elctronics :PI'm scheduled to take a half-course Electronics GCSE in a week's time and I'm struggling to grasp the concepts of a 555 timer circuit. I understand the difference between a monostable and astable, but I'm required to be able to tell the difference from a circuit diagram (with no time graph etc) can anybody tell me the way to tell between the two types of circuit JUST from a circuit diagram? I believe it's something to do with the pins which are connected to each other (e.g. in an astable pins 2 and 6 connect directly to each other) more info requiredplease please help Quote Link to comment Share on other sites More sharing options...
ante Posted May 28, 2007 Report Share Posted May 28, 2007 I recommend this: http://www.uoguelph.ca/~antoon/gadgets/555/555.html Quote Link to comment Share on other sites More sharing options...
hustla7 Posted May 28, 2007 Author Report Share Posted May 28, 2007 cheers mate, i found a reallllly helpful explanation on www.technologystudent.comand your site helped a lot toothanx for this :D Quote Link to comment Share on other sites More sharing options...
gan87 Posted June 8, 2007 Report Share Posted June 8, 2007 u shud look over 1)connecting pin 4 to positive supply wen not in use........2) grounding pin 5 wit a 0.01microfarad capacitor...(wen u r not using it) Quote Link to comment Share on other sites More sharing options...
audioguru Posted June 8, 2007 Report Share Posted June 8, 2007 2) grounding pin 5 wit a 0.01microfarad capacitor...(wen u r not using it)The capacitor does not "ground" pin 5, it filters it. Quote Link to comment Share on other sites More sharing options...
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