Dragon Tamer Member May 26, 2010 #1 I wanted to make a frequency meter for my radio using a micro-controller. I have 2 questions, first will the micro controller (DS2250) change the frequency of the tank circuit? Secondly, can I have the micro-controller even read the very high frequency of the tank circuit? (11MHz oscillator)
I wanted to make a frequency meter for my radio using a micro-controller. I have 2 questions, first will the micro controller (DS2250) change the frequency of the tank circuit? Secondly, can I have the micro-controller even read the very high frequency of the tank circuit? (11MHz oscillator)
nsaspook Well-Known Member Most Helpful Member May 26, 2010 #2 Dragon Tamer said: I wanted to make a frequency meter for my radio using a micro-controller. I have 2 questions, first will the micro controller (DS2250) change the frequency of the tank circuit? Secondly, can I have the micro-controller even read the very high frequency of the tank circuit? (11MHz oscillator) Click to expand... Take a look at this thread... https://www.electro-tech-online.com/threads/help-to-develop-software-for-freq-counter.32944/
Dragon Tamer said: I wanted to make a frequency meter for my radio using a micro-controller. I have 2 questions, first will the micro controller (DS2250) change the frequency of the tank circuit? Secondly, can I have the micro-controller even read the very high frequency of the tank circuit? (11MHz oscillator) Click to expand... Take a look at this thread... https://www.electro-tech-online.com/threads/help-to-develop-software-for-freq-counter.32944/
Nigel Goodwin Super Moderator Most Helpful Member May 26, 2010 #3 Dragon Tamer said: I wanted to make a frequency meter for my radio using a micro-controller. I have 2 questions, first will the micro controller (DS2250) change the frequency of the tank circuit? Click to expand... You need a high impedance buffer. Secondly, can I have the micro-controller even read the very high frequency of the tank circuit? (11MHz oscillator) Click to expand... 11MHz isn't 'very high', and the standard PIC designs work to at least 50MHz.
Dragon Tamer said: I wanted to make a frequency meter for my radio using a micro-controller. I have 2 questions, first will the micro controller (DS2250) change the frequency of the tank circuit? Click to expand... You need a high impedance buffer. Secondly, can I have the micro-controller even read the very high frequency of the tank circuit? (11MHz oscillator) Click to expand... 11MHz isn't 'very high', and the standard PIC designs work to at least 50MHz.