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How change the Frequency of a 555 timer with another circuit ?

ramussons

Jun 10, 2014
440
Joined
Jun 10, 2014
Messages
440
Hello,

If I wanted change the frequency of a 555 using a processor or some other logic circuit, how would I configure that circuit ? Can I just use some switching transistors to short or change resistance value on the 555 ?

Any help is appreciated.
Thanks
You can change the frequency of a 555 by changing the voltage on pin 5.
 
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