Hello to you all
I'm studying the last days the timmer 555 and i have a difficulty finding something out..At first i use a soundcard based program for oscilloscope and spectrum analyser named "Daqarta" and i'm trying to measure the frequency of an output pulse at 25 KHz,but the software seems to limit at 22 KHz,how can i determine which is the max frequency my laptop's soundcard can measure (HP 6730s)??
Also i'm using 555 Timmer V4.1 software and i wonder if there is a way to make 555 oscilate between 20 and 30 KHz range by one single trimmer resistor between pin 7 and pin 8
Please excuse my bad English,here i hope to gethelp,provide help if i can and make some friends!
mushaba
I'm studying the last days the timmer 555 and i have a difficulty finding something out..At first i use a soundcard based program for oscilloscope and spectrum analyser named "Daqarta" and i'm trying to measure the frequency of an output pulse at 25 KHz,but the software seems to limit at 22 KHz,how can i determine which is the max frequency my laptop's soundcard can measure (HP 6730s)??
Also i'm using 555 Timmer V4.1 software and i wonder if there is a way to make 555 oscilate between 20 and 30 KHz range by one single trimmer resistor between pin 7 and pin 8
Please excuse my bad English,here i hope to gethelp,provide help if i can and make some friends!
mushaba