How to send LCD output to Arduino?

[aatefi]

Hi aarg,

Thank you for your reply. Since the LCD directly shows RPM, I was wondering I can directly read the data from LCD.

I found the code from the link below to read rpm from a hall effect sensor (similar as mine), do you think will it be useful for my application?

Arduino tachometer without lcd screen

Hi everyone. I was trying to make my own tachometer without lcd screen so i can use my serial monitor to read RPM (rounds per minute). All of the tutorials (i found a lot) were using lcd screen. So i managed to find someones code with the use of serial monitor only and i tried it out. I found that he was wrong in the conversion of RP(ms) to RPM so i made a correction and want to share it with you. in my case worked just fine with a hall sensor. The infrared sensor was not that accurate. Before …