Raspiyo
Posts: 18
Joined: Thu Jul 21, 2016 3:15 pm

How to connect jst connector to Pi?

Thu Jul 21, 2016 3:18 pm

I am using a jst connector to connect an led strip to a Raspberry Pi as explained here:
https://learn.adafruit.com/raspberry-pi ... -led-strip

However, I don't understand how to connect the wires from the jst connector to the pi. What part am I missing to connect them? I would prefer not to solder anything.

fishdude
Posts: 3
Joined: Fri Jul 22, 2016 9:40 am

Re: How to connect jst connector to Pi?

Fri Jul 22, 2016 10:30 am

Looking at that tutorial they have crimped famale pins like thesehttps://www.proto-pic.co.uk/female-crim ... -pack.html to the bare wire end popped them in the housings for make female header pins then just pop them on to the correct GPIO pins on the Pi, you would also need a crimping tool to do it easily and well. I think the wires coming from the LED strips is pretty short so you'd probably want to extend them by soldering extra wire and then heat shrinking over the joins.
Hope that helps

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B.Goode
Posts: 10356
Joined: Mon Sep 01, 2014 4:03 pm
Location: UK

Re: How to connect jst connector to Pi?

Fri Jul 22, 2016 10:57 am

In the hardware section of the Adafruit tutorial you link to it says:
Miscellaneous:

wire, some female to female jumpers or some JST connectors if you don't want to solder to the RGB strip.
So, assuming the jst connector already on the led strip has 'male' (pin) connectors, you would simply need a few 'female to female' (sockets on both ends) 'dupont' jumper cables. (Also assuming that those can physically plug into the jst connector.)

Raspiyo
Posts: 18
Joined: Thu Jul 21, 2016 3:15 pm

Re: How to connect jst connector to Pi?

Fri Jul 22, 2016 3:33 pm

Ok, I just ordered some female/female jumper wires:
https://www.adafruit.com/products/266
It looks like that will work great and no need to solder, thanks!

Raspiyo
Posts: 18
Joined: Thu Jul 21, 2016 3:15 pm

Re: How to connect jst connector to Pi?

Fri Jul 22, 2016 3:40 pm

fishdude wrote:Looking at that tutorial they have crimped famale pins like thesehttps://www.proto-pic.co.uk/female-crim ... -pack.html to the bare wire end popped them in the housings for make female header pins then just pop them on to the correct GPIO pins on the Pi, you would also need a crimping tool to do it easily and well. I think the wires coming from the LED strips is pretty short so you'd probably want to extend them by soldering extra wire and then heat shrinking over the joins.
Hope that helps
I see, so instead of using a female female jumper cable to connect (as explained below), I could just strip some of the plastic covering from the jst cable to make the wire a bit longer, crimp a female pin on, and then it could connect directly to the pi gpio section. Makes sense, thanks much!

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