Monday 31 July 2017

Circuit Monday #14 Latching switch

Good afternoon folks and welcome to another Circuit Monday todays circuit is A latching switch 

Components needed 

1 LED 
1555 TIMER 
1PUSH BUTTON SWITCH 
1CAPACTIOR 
4 RESISTORS 

all my Circuits are breadboarded on the prototype board I made here 





Uses for this circuit 

you can use this circuit for turning on and off power to all sorts of things 



Step one

place the switch and the 555 timer on the board
 

Step two

connect pin 2 to pin 6 then connect pin 8 and 4

Step three

connect pin 8 to pin 6 with a 10k resistor 

Step four

connect pin 1 to pin 6 with a 10k resistor 

Step five

connect the capacitors negative lead to pin 1 of the 555 timer 

Step six

connect pin 3 to the positive lead of the capacitor with a 100k resistor
 

Step seven

connect one pin of the switch to the same row as the positive lead of the capacitor 

Step eight

connect pin 2 of the 555 a different pin on the switch 

Step Nine

connect the anode of the led to pin 3 of the 555 timer then connect the cathode to a resistor  that is then connected to the negative rail of the board 

Step Ten

connect pin 1 to the negative rail and pin 8 to the positive rail of the board now your circuit ready to test 


Fritzing layouts





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Thanks for taking the time to read this if you liked what you've read then please check back tomorrow after 17.00bst for another update thanks again. Dobby 

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