Spark Relay Shield (relay always on?)

Troubleshooting
1

Warning: I’m fairly new to electricity concept and Spark.

Hello,

I’m trying to build a remote Wifi socket with the relay shield along the Spark core. I want to control 2 outlets each plugged in their single relay (socket 1 to relay 1, socket 2 to relay 2). The current needs to be plugged in there somewhere. Where do I plug the positive and negative wires into the relay? Then, how can I relay the current to each of the sockets (I don’t quite get the difference between COMM and NOCOM, etc.) Can the Relay passes the electricity from relay 1 to relay 2?

Thanks for your help.

Nicolas.

2

i’m not sure what is NOCOM but the usual pins are:

  • Normally Opened
  • Normally Closed
  • Common

You connect the positive wire from the power source to COMMON. The negative wire from the power source will simply connect to the -negative terminal.

Another wire from the Normally Opened will connect to the positive terminal

+ve -------------> COMM ====== NO ---------> +ve Terminal

-ve --------------------------------------------------> -ve Terminal

The COMM will connect to NO when you trigger the relay. (=====)

1 Like
3

Hi @nblavoie,

Someone recently posted a project share about controlling an outlet with a core here:

Thanks!
David

1 Like
4

Well, it doesn’t work. I’ll post a photo this weekend.

Thanks!

1 Like
5

Hi @nblavoie,

I’m curious to hear if you’ve had any luck getting your relay going?

Thanks!
David