Friday, 5 July 2019

audio - How to connect mic on arduino, with opamp?


I'm trying to connect a contact mic to an arduino. My knowledge in electronics is sparse, so please bear with me.


I got a couple of lm833n audio dual opamps, which I'd like to put to use. I'm still struggling to understand opamps, though.


I've been reading a instructable on audio input on the arduino. It uses the following circuit:


circuit diagram


However, this is for the TL072 opamp ; I'm not really sure if I can use the lm833n in its place? And is this circuit suitable for a contact mic?



Also, it would be great if anyone could point me to a good (easy) introduction to opamps - the wikibooks page is a bit dense for me




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