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Mains frequency triggering led matrix refresh

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Asok Sankar Rudra

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Dear All,
Can I try mains frequency as the timing device for refreshing small led matrix?
Can you suggest a tested scheme?
Like that can I use a 555 oscillator for controlling scroll speed?
I shall appreciate any help.
Best Regards
A.S.Rudra
 

could u please send a block daigram of exactly what u r trying to ask

Added after 1 seconds:

could u please send a block daigram of exactly what u r trying to ask

Added after 23 seconds:

also which controller u using
 

Vicky29,
I normally stick to mcs51 series, the cheapest here.
For the block diagram and even the source (sclock.asm) try https://www.techkits.com.
But how does it matter? I wanted to discuss the algorythm,ram allocations,and limitations of such approach depending on column length,message length,speed range etc.
Best Regards
A.S.Rudra
 

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