garg29
Advanced Member level 1

Hi friends,
i have to make a simple rpm meter for a shaft running between 500 - 2500 rpm. i have to use 89c51 and a optical sensor combination. but i can't understand how to use timer register for it. and secondly during the time the timer counts, will the display vanish or how can i solve the problem. Please help me.
Thanks.
i have to make a simple rpm meter for a shaft running between 500 - 2500 rpm. i have to use 89c51 and a optical sensor combination. but i can't understand how to use timer register for it. and secondly during the time the timer counts, will the display vanish or how can i solve the problem. Please help me.
Thanks.