LED for intelligent DPDT relay

[jcpst]

On the intelligent DPDT relay, can I use the "SW" "GND" pair in the top-right corner for an LED? Or do I need to use one of the poles?

Intelligent DPDT Relay Module - PedalPCB.com

Relay Bypass Module

www.pedalpcb.com

 

[Robert]

Yes, SW is pulled low when this set of poles are closed.




Alternatively, if you look on the back there is a set of pads for connecting an LED directly to the PCB.



If you want to use these pads omit the 2N3904 transistor, the 10K resistor (in orange) becomes your current limiting resistor. The LED will be powered at 5V so adjust the value accordingly.

 

[jcpst]

Thanks Robert, I was afraid that might be the case. I’ll need to do some troubleshooting.

I didn’t know about the LED pads on the back, might give that a shot.

 

[jcpst]

I must have been doing something goofy. Did the alternative connection with the LED pads on the bottom and now I am intelligently doubly throwing.