i'm going to take a weak signal amplify it then calculate the frequency on an analog pin... accuracy is kinda important eg... if a 30hz frequency.... 60hz so if it shows 28-32hz each frequency represents a different user/id... simple as possible as i intend on using an attiny85 as the signal gener…

frequency counter? but...

Topic		Replies	Views
Frequency measure ATTINY85 General Guidance	8	8391	May 5, 2021
Measuring Frequencies? General Guidance	16	6126	May 5, 2021
Usare libreria FreqCount con un Attiny45 , 85 Software	8	1697	May 7, 2021
Looking for a better frequency counter library General Guidance	17	11193	May 5, 2021
Measure of frequency General Guidance	2	642	May 5, 2021