Hello, i'm israr from 8th semester ee. i chose automated railway gate control using plc (ge versamax) as my project. i used ir sensors to detect train and send signal to open the gate. so far in the input side there is no problem at all. but the output , that is a l293d driver controlling dc geared motors i don't know how to connect the l293d to the plc output. in l293d there 4 input terminals. 2 for each and you are suppoesed to give '0' that is a ground signal to i1 or i2 to operate in anti and clockwise respectively. but how do i give this 0 ....etc

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i want to make an existing sprinkler system with moisture control sensor for my home.so i want to know about a low cost sensor and circuit digrm for the same
thank you ....etc

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I AM REQUESTING U FOR THE CIRCUIT DIAGRAM AND ITS OPERATION
OF THE AUTOMATIC SCHOOL BELL SYSTEM USING 8085 AND 555 ....etc

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To get full information or details of efy circuits of touchcsreen wheelchair please have a look on the pages

http://seminarsprojects.net/Thread-touch-screen-based-wheel-chair-implementation

http://seminarsprojects.net/Thread-touch-screen-based-projects

http://seminarsprojects.net/Thread-touch-screen-based-wheelchair?pid=65537&mode=threaded

if you again feel trouble on efy circuits of touchcsreen wheelchair please reply in that page and ask specific fields in efy circuits of touchcsreen wheelchair ....etc

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To get full information or details of presence sensing light controller please have a look on the pages

http://seminarsprojects.net/Thread-project-on-presence-sensing-lights-controller

if you again feel trouble on presence sensing light controller please reply in that page and ask specific fields in presence sensing light controller ....etc

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To get full information or details of accelerometer based gesture controlled robot please have a look on the pages

http://seminarsprojects.net/Thread-hand-gesture-based-wireless-robot-using-accelerometer

http://seminarsprojects.net/Thread-wireless-gesture-controlled-robot-using-accelerometer-report

if you again feel trouble on accelerometer based gesture controlled robot please reply in that page and ask specific fields in accelerometer based gesture controlled robot ....etc

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thanks for ur kind information buddy and i will be highly grate ful to u if u snd mre the ppt ....etc

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To get full information or details of automatic school bell system using 8085 and 555 please have a look on the pages

http://seminarsprojects.net/Thread-automatic-school-bell

if you again feel trouble on automatic school bell system using 8085 and 555 please reply in that page and ask specific fields in automatic school bell system using 8085 and 555 ....etc

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i need circuit diagram of scrolling LED display.snd it to my mail id- [email protected] ....etc

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DRIP IRRIGATION AND CLOGGING IN DRIP IRRIGATION

INTRODUCTION
Drip irrigation is a method of applying water or frequent application of water to crops through small emitters in the vicinity of root zone, wetting a limited amount of surface area and depth of soil.

DRIP IRRIGATION SYSTEM
In drip system water is conveyed through a system of flexible pipe lines
Drip system reduces water requirement of the plant by maintaining minimum soil moisture, equal to field capacity.

SYSTEM COMPONENTS
A P ....etc

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