Im trying to build rpm counter using IR leds and arduino uno. The output im receiving in the serial monitor is totally a glitch. the output is random numbers though the motor fan is not placed b/w IR leds(instead of 0).Even if i place motor b/w IR leds there is no changes in the output, it is keep …

Rpm counter IR tachometer - Help needed

system September 6, 2014, 7:47pm 6

I see, Thank you for the reply its a big help.

All the best