Hello all
i sent asking about how to make my counter works properly
well
now the matter became so horrible
i'll tell u what i did & need anyone to tell me comment & guide me coz this is my first practical work, im working lonely too, no team
plz dont laugh at me
i got an optocoupler & biased it , im sure of it's connection & it gives output pulses when the motor disc rotates btween it's both sides (photo diode & receiving transistor
the motor disc is simply a piece of strong paper that i made in form of circle & made it's edge like a gear ( i made 16 holes on the circumference)
output pulses from opto coupler i use it as the clock , input to my counter
the counter 74193 , i connected it as follows:
it's four input pins-----to ground
pin 16---vcc
pin8--- ground
load pin---vcc through 1kohm
clear pin-- to ground
i connected the four output pins to leds inorder to check the count
well,, im supposed to connect the carry pin to a second counter 74193 as a clock, so that each 16 pulse (each motor cycle) the second counter will count 1,,, & then i'll connect it to a decoder 7447 & seven segment
now i connected the whole circuit except the second counter
i thought of checking what i did first, b4 i continue
i connected the 1st counter directly to the decoder 7447
but hoplessly it didnt count at all
when i wasnt connecting the decoder, it was counting but stupidly
1 5 7 1 5 7
i connected a capacitor as the degnified sir told me, but still stupid count
it's awful in both cases
i dont know what to do!!!!!!!!!!
plz help meeeeeeeeeeeeeeeeeeeeee
im so sorry for making it long on u
waiting ur replies
bye
i sent asking about how to make my counter works properly
well
now the matter became so horrible
i'll tell u what i did & need anyone to tell me comment & guide me coz this is my first practical work, im working lonely too, no team
plz dont laugh at me
i got an optocoupler & biased it , im sure of it's connection & it gives output pulses when the motor disc rotates btween it's both sides (photo diode & receiving transistor
the motor disc is simply a piece of strong paper that i made in form of circle & made it's edge like a gear ( i made 16 holes on the circumference)
output pulses from opto coupler i use it as the clock , input to my counter
the counter 74193 , i connected it as follows:
it's four input pins-----to ground
pin 16---vcc
pin8--- ground
load pin---vcc through 1kohm
clear pin-- to ground
i connected the four output pins to leds inorder to check the count
well,, im supposed to connect the carry pin to a second counter 74193 as a clock, so that each 16 pulse (each motor cycle) the second counter will count 1,,, & then i'll connect it to a decoder 7447 & seven segment
now i connected the whole circuit except the second counter
i thought of checking what i did first, b4 i continue
i connected the 1st counter directly to the decoder 7447
but hoplessly it didnt count at all
when i wasnt connecting the decoder, it was counting but stupidly
1 5 7 1 5 7
i connected a capacitor as the degnified sir told me, but still stupid count
it's awful in both cases
i dont know what to do!!!!!!!!!!
plz help meeeeeeeeeeeeeeeeeeeeee
im so sorry for making it long on u
waiting ur replies
bye