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Look at figure 6 in this datasheet.
https://www.electro-tech-online.com/custompdfs/2011/05/LM555-1.pdf
Read this link. Pay close attention to the section about Choosing R1, R2 and C1 and note the table on the right. To answer your question, no you will not get from 2 Hz. to 100 KHz with any single pot or capacitor combination.
Ron
Hi zesla,
fig.6 is clear to me.
Of course you need to change timing caps and resistors for a frequency range of 2Hz to 100KHz (several different values for R and C).
Boncuk
Any way to get a range of 1Hz to 100KHz square wave with any chip and just by a pot is welcomed. I do not like to use a switch on 555 to switch the timing cap.
Oh I forgot to say that the range that I need is not continues for 1Hz to 100KHz, just from 1Hz to 10Hz and from 90KHz to 100Kz is ok. As I told I don't want to use any switch....