ericgibbs Well-Known Member Most Helpful Member Oct 23, 2011 #3 dwijender said: can any one post project report on this automatic school bell Click to expand... Hi, This is one version, what timing periods are required.??? Attachments automaticSchoolBell.png 46.7 KB · Views: 192
dwijender said: can any one post project report on this automatic school bell Click to expand... Hi, This is one version, what timing periods are required.???
D dwijender New Member Oct 23, 2011 #4 i want 50 50 10 50 50 50 50 50 50 thanks for ur replies and also i want the operation of each IC in the circuit
i want 50 50 10 50 50 50 50 50 50 thanks for ur replies and also i want the operation of each IC in the circuit
ericgibbs Well-Known Member Most Helpful Member Oct 23, 2011 #5 dwijender said: i want 50 50 10 50 50 50 50 50 50 thanks for ur replies and also i want the operation of each IC in the circuit Click to expand... hi, Would you post what you think what the operation of each IC is, then we can go thru it together,
dwijender said: i want 50 50 10 50 50 50 50 50 50 thanks for ur replies and also i want the operation of each IC in the circuit Click to expand... hi, Would you post what you think what the operation of each IC is, then we can go thru it together,
D dwijender New Member Oct 23, 2011 #6 i want know how the period is change the 50 min to 10 break and 50 min lunch break
ericgibbs Well-Known Member Most Helpful Member Oct 23, 2011 #7 dwijender said: i want to know how the period is change the 50min to 10min break and 50min lunch break Click to expand... This circuit will show you how to make the changes, can you follow it OK.? Attachments AAesp04.gif 26.5 KB · Views: 186
dwijender said: i want to know how the period is change the 50min to 10min break and 50min lunch break Click to expand... This circuit will show you how to make the changes, can you follow it OK.?
D dwijender New Member Oct 23, 2011 #8 i don't get it dude how the 10 min break will occur there is there i connect all red points??? i.e o1 to o1 , o2 to o2 , o3 to o3 & q0 to q0
i don't get it dude how the 10 min break will occur there is there i connect all red points??? i.e o1 to o1 , o2 to o2 , o3 to o3 & q0 to q0
ericgibbs Well-Known Member Most Helpful Member Oct 23, 2011 #9 dwijender said: i don't get it dude how the 10 min break will occur there is there i connect all red points??? i.e o1 to o1 , o2 to o2 , o3 to o3 & q0 to q0 Click to expand... You change the resistors shown in the Red box.. I will try to do a circuit tomorrow. Attachments AAesp05.gif 5.1 KB · Views: 155
dwijender said: i don't get it dude how the 10 min break will occur there is there i connect all red points??? i.e o1 to o1 , o2 to o2 , o3 to o3 & q0 to q0 Click to expand... You change the resistors shown in the Red box.. I will try to do a circuit tomorrow.
D dwijender New Member Oct 23, 2011 #10 thank dude and also i want theory on this pls can u post me????
ericgibbs Well-Known Member Most Helpful Member Oct 23, 2011 #11 dwijender said: thank dude and also i want theory on this pls can u post me???? Click to expand... I have changed the times so that you get your sequence. You must try and tell me how you think it works, I cannot do all the project for you. Attachments School4.gif 50.3 KB · Views: 166
dwijender said: thank dude and also i want theory on this pls can u post me???? Click to expand... I have changed the times so that you get your sequence. You must try and tell me how you think it works, I cannot do all the project for you.
D dwijender New Member Oct 25, 2011 #13 hi whr as In this circuit VDD means supply voltage(12v) or not ??????? before the bell we connect relay or not?????///// pls reply. Attachments School4.gif 50.3 KB · Views: 138
hi whr as In this circuit VDD means supply voltage(12v) or not ??????? before the bell we connect relay or not?????///// pls reply.
D dwijender New Member Oct 25, 2011 #14 hi whr as In this circuit VDD means supply voltage(12v) or not ??????? in-front of the bell we connect relay or not?????///// pls reply. Attachments School4.gif 50.3 KB · Views: 146
hi whr as In this circuit VDD means supply voltage(12v) or not ??????? in-front of the bell we connect relay or not?????///// pls reply.
ericgibbs Well-Known Member Most Helpful Member Oct 25, 2011 #15 dwijender said: hi whr as In this circuit VDD means supply voltage(12v) or not ??????? in-front of the bell we connect relay or not?????///// pls reply. Click to expand... Use the circuit in post #3, and change the values I have posted to give the times you want.
dwijender said: hi whr as In this circuit VDD means supply voltage(12v) or not ??????? in-front of the bell we connect relay or not?????///// pls reply. Click to expand... Use the circuit in post #3, and change the values I have posted to give the times you want.
D dwijender New Member Oct 25, 2011 #16 thanks dude ,the above post #3 circuit is working and know i changes the values wht u send to me in two days i will send u reply thanks a lot
thanks dude ,the above post #3 circuit is working and know i changes the values wht u send to me in two days i will send u reply thanks a lot
ericgibbs Well-Known Member Most Helpful Member Oct 25, 2011 #18 dwijender said: how can u modify this pls send me the software?????? Click to expand... Which software. If you mean LTspice its a free download from the web
dwijender said: how can u modify this pls send me the software?????? Click to expand... Which software. If you mean LTspice its a free download from the web
D dwijender New Member Oct 25, 2011 #19 ur rockinggggggg dude up to this time i don't this software know i am downloading this thanks a lot ψψψΦ§
ur rockinggggggg dude up to this time i don't this software know i am downloading this thanks a lot ψψψΦ§
ericgibbs Well-Known Member Most Helpful Member Oct 25, 2011 #20 dwijender said: ur rockinggggggg dude up to this time i don't this software know i am downloading this thanks a lot ψψψΦ§ Click to expand... If you get it working, this is the 'asc' file for your circuit. Attachments School4.asc 6.4 KB · Views: 154
dwijender said: ur rockinggggggg dude up to this time i don't this software know i am downloading this thanks a lot ψψψΦ§ Click to expand... If you get it working, this is the 'asc' file for your circuit.