Posted: Sun Oct 28, 2007 8:17 pm Post subject: 80c52 multicounter
Frequency & period counter , milliHz counter (1/period) , rpm counter (tachometer)
Uses 80c52 , 12MHz crystal , 16*2 alfhanumeric LCD display , 1 led , 2 pushbutton switch
frequency range 1Hz - 400KHz
period range 100uS - 8Sec.
out of this range the counter DO NOT WORKS
for good precision crystal oscillator calibration is suggested.
attached counter.zip (Multicounter.bas)
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