Discussion in "Project Doubts" started by    Chinmay Das    Mar 11, 2009.
Sat Oct 03 2009, 04:49 pm
Hiiii chinmay and m. mohsin

hope u r there to help me the image shown here is the image of relay

i couldn't understand that out of these 5 different terminals shown which of them is Nc,No,Common,Vcc,Ground

i have marked the pins with different colours please reply me according to the colour of the pin
Tue Oct 06 2009, 03:36 pm
red one is common.

white and blue might be coil (try to check connectivity between them to confirm)

green and brown are NO, NC contact. use multimeter, if common is shorted with any of them that pin is NC and other one is NO.
Tue Oct 06 2009, 08:10 pm
how do we check Vcc and ground for both blue and white????

and one thing more how can we make a big hole in a PCB board
Wed Oct 07 2009, 06:32 am
and how do we properly cut the PCB board into two parts
Thu Oct 08 2009, 03:14 pm
those are coil connections, so any of them can be Vcc or GND.

is it a general purpose PCB? if yes then use a wire cutter and mark a cut along the holes then break it apart using hands or same cutter.
Fri Oct 09 2009, 04:54 pm
yes it is general purpose PCB

bt i tried when i try to break it it will spoil the print on PCB and the whole board got break
Fri Oct 09 2009, 08:03 pm
Wow, nice to see many more people working on this project.
@ankit You will need to do it with light hands. That is the only way to do it. Use a wire cutter and then break using hands as Ajay said.
Sat Oct 10 2009, 03:48 pm
ok thanks amit

i will try once more

hope for future help

actually i am working on humidity sensor trying to make it by myself if i able to make it hen i will post the circuit in the forum
Mon Oct 12 2009, 09:57 am
great, that will be a good solution instead using a costly RH sensor.
Mon Oct 12 2009, 10:04 am
heloo everyonem:) well the site is looking cooolll in its new theme

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