Digital Electronics and Logic Circuits

	Basic Digital Circuits Digital Timers, Counters and Clocks Mixed and Interface Circuits 555 Timer based Circuits
Digital Logic : You can start learning digital circuits by learning the operation of logic gates, see an interactive gadget tutor Logic Gates. Then you can test the basics with these tutor gadgets Digital BCD counter Astable 555 Timer LED Running lights Some Digital circuits i have  explained  Digital_Circuits -  Mixed_Circuits. Digital FAQ : Dynamic Digital Tutors - 555 simulator   Usage of Schmitt trigger NAND Gates - I have a question about your Long Duration Timer circuit   Printer Sharing Without LAN - I am from Techno India college   Fuzzy Logic Links - please if you have some materials on Fuzzy logic control   Presettable Up-Down counter-timer - I am looking for a schematic for pre settable Up/Down counter   Seven Segment LED display - how is the circuit for driving a seven segment led 555 Circuits : When i wanted to try out Cadsoft Eagle these circuits were drawn from some of my old notes, the source files also given in the pages below.    Pulse width modulation using 555. fixed frequency variable duty cycle 555. 555 watchdog for uC and uP systems. OR gate with two 555. Drive SCR thyristor with 555. LM555 Voltage Doubler. 555 based Reset Generator. Anantha Narayan
	The Logical Story at Play Hookey Digital Electronics by Graham Knott Logic Gates - Electronics Club Digital Electronic Circuits Digital / Logic Electronic Circuits

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