hi all
i need to generate high frequency..32khz with ne555 ....my SCHEMATIC DIAGRAM :
but the problem is the output frequency not stable at all.
when i measure the output frequency it plays around 29800hz..28054hz..30125hz..35458hz !!!! where is the problem??
i am using pic based frequency counter ..and it work fine and when i am using it to measure 30000hz signal coming from another pic it reads 29756 Hz..it is good for me ..but with 555
it plays around 29800hz..28054hz..30125hz..35458hz !!!! where is the problem??
i need to generate high frequency..32khz with ne555 ....my SCHEMATIC DIAGRAM :
but the problem is the output frequency not stable at all.
when i measure the output frequency it plays around 29800hz..28054hz..30125hz..35458hz !!!! where is the problem??
i am using pic based frequency counter ..and it work fine and when i am using it to measure 30000hz signal coming from another pic it reads 29756 Hz..it is good for me ..but with 555
it plays around 29800hz..28054hz..30125hz..35458hz !!!! where is the problem??