Qwiic single realy cable connectors

Qwiic System
1

Hello. My son is building a model rocketry flight computer using a micro:bit and the weather:bit board. The weather:bit has an I2C port. He wants to be able to control a relay from the micro:bit so I purchased a Sparkfun Qwiic single relay.

My question is: what cable or combination of headers, etc. can I get that will allow me to connect the minuscule gnd, 3.3v, sda, and scl holes on the relay back to the port on the weather:bit? The I2C port on the weather:bit is 4 pin female. Is there something made for this? I’ve been searching and haven’t found a ready made connector. I don’t think my soldering skills are good enough to successfully solder onto the tiny holes on the single relay.

Thanks in advance for any help.

2

One of these will work for ya!

https://www.sparkfun.com/products/17259

3

Thanks. I don’t think this will work though. The single relay does not have a JST connector. It just has tiny through holes.

4

Is this the relay you have?

https://www.sparkfun.com/products/15093

5

Yes, that’s the one. I think I get it now. I was thinking the through holes marked gnd, 3.3v, sda, and scl were the only interface. But those JST ports are also input and allow for daisy chaining. Sorry, I was just confused. Thanks for your help.

6

No problem rabbit.

Merry Christmas!