guitar tuners

hi guys,am new here and really need your help.am half way through an hnd electronic engineering course in blackpool,england, and need to start my end of year project. because i play guitar a little, i thought i would try my hand at building a simple guitar tuner.theres loads of stuff on the internet but where should i start.would like to keep it simple.could anyone tell me the quickest route to go down.thanks

The simplest way is to flash an LED at the right frequency and use it as a stroboscope. When the string is tuned it appears still.

Mike.

thanks mike.initially what components will i need to consider using.am i correct in assuming i need a micro controller to convert frequency to voltage?
charlie

thanks mike.what components parts would i need to consider for such a tuner.charlie

charlie.t said:

am i correct in assuming i need a micro controller to convert frequency to voltage?

Click to expand...

Not necessarily, you can do it with a LM2917

https://images.google.ie/imgres?imgurl=https://instruct1.cit.cornell.edu/courses/ee476/FinalProjects/s2004/ddb25/complete2_files/image005.jpg&imgrefurl=http://instruct1.cit.cornell.edu/courses/ee476/FinalProjects/s2004/ddb25/complete2.htm&h=316&w=576&sz=14&hl=en&start=18&um=1&tbnid=pJQrTWmOjdNqhM:&tbnh=74&tbnw=134&prev=/images%3Fq%3Dguitar%2Btuner%2BPIC%2Bmicrocontroller%26um%3D1%26hl%3Den%26safe%3Doff%26sa%3DN

I wonder if this circuit is any good. He amplifies the output of an electric guitar which goes to the input of a microcontroller that detects the zero crossing
for a number of cycles then uses a lookup table to determine the frequency.