Help Relay Connection

[MrYu]

how to connect the NO and NC of relay in actual i know to connect the part until A and B of the relay?
and i have this relay 12v JZC-20F 4088 is this a SPDT type?

 

[panic mode]

relay contacts are just a switch. the only difference is that is moved by magnetic field instead of your hand.

 

[panic mode]

how is this

 

[MrYu]

i used spdt in simulation but i'm not sure in actual if the relay is spdt coz it's not working and i don't know if my connection to the contacts are right , i just test a led first before going to AC.

 

[panic mode]

accordign to datasheet it is SPDT:
https://www.electro-tech-online.com/custompdfs/2008/04/12522.pdf

pinout is shown on the very top of the document.
you can check the relay using multimeter (in case you didn't have the datasheet).
pins that measure 0ohm are NC and COM (normally closed and common contact)
pair of pins to coil would have resistance in tens or hundreds of ohm.
remaining pin that has high resistance to all other pins is NO (normally open).
you would normally use COM and NO to drive load.

note that COM is between coil contacts. normally you bring power to COM and connect load to NO but they can be reversed (as I've done in first reply to avoid clutter).

 

[MrYu]

tnx men it's a big help.. i'm gonna start and work it out in actual

 

[MrYu]

My project is still not working and i change some of my codes

 

[panic mode]

it is possible that any component can be faulty but there has to be reason for it.
your configuration must match, if you choose xtal in code, you better have xtal of right frequency connected, along with the capacitors.
if the outputs turn on, chances are they work but maybe they work way too fast.
if the led flickers 100s of times per second, it will look as if it was continuously on...
relay is slow electromechanical device and responds in some ~25ms.
so if you want relay to turn on and off, you should make sure it has time to do so.

 

[MrYu]

Bc548