rpm meter with ir sensor

Thread Starter


Joined Sep 11, 2009
hello everybody,,, i would like to ask for help regarding the 8051 microcontroller. i need to design a rpm meter using 7segment display that display the count of DC motor rotation per minute. i have to use the infrared as the sensor to count the rotation of the dc motor per minute. i'm a beginner and still reading the MAZIDI book. anyone here could write the assembly language for me? please.
here i attached also the roughly drew block diagram of the project that i intend to do. thanks. -i do really need your help-