[KIT-14604] Beginner issue : blinking led on PWM port

Kits
1

Hi everyone,

I’ve just bought sparkfun KIT-14604 and started to read the tutorials.

For the [first experiment I have a problem I don’t understand with the Tessel ports.

I plugged the LED on port a5 (as it is said in the tutorial) but it didn’t work until I realised it works on every port except 5 and 6.

Then I found this “Pins 5 and 6 on both ports support Pulse-Width Modulation (PWM). A common way we use them here at SparkFun is to control dimming of RGB LEDs”.

So I’ve added a “led.brightness(255);” to my code but it still doesn’t work with 5 and 6 ports.

Even if it works well with the other ports, I would like to understand that issue before going further.

Any idea ?

Thanks in advance,

Arthur](Experiment Guide for the Johnny-Five Inventor's Kit - SparkFun Learn)

2

Hi Arthur,

It looks like you have run into the same issue as [this user in regards to how the code we have in that guide names the pins. We’re looking into a fix for that but as of right now, we do not have a great solution for using those pins.](Johnny-Five Inventor's Kit pins issue - SparkFun Electronics Forum)

3

Hi Mark,

Thanks for the reply.

Do you approximately know when this issue will be fixed ?

Thanks !

Arthur

4

Hi again Arthur,

Unfortunately, we do not have a firm ETA on when that will be fixed. This kit is a little more complicated to fix than our other Inventor’s Kits since it’s a collaboration with the folks at [Johnny-Five. The authors of the tutorial are aware of the issue but I’m not sure what the status of the fix is right now.](http://johnny-five.io/)

5

Mark, thanks for your answer.

I understand the issue. It’s a pity, there are several things in the tutorials I cannot do without PWM pins.

A last question : in the following weeks/months how can I know if the issue has been fixed ?

Thanks

6

There’s not an issue you would be able to follow along with publicly so we’ll just have to do it manually. I will reply to this post once we have a fix in place and have confirmed it works.

7

Ok, thanks a lot !

8

Hi Arthur,

It looks like the creator of Johnny Five posted to the topic I linked in my first reply and there should be a new version (v1.2.0) that fixes this issue. I’ll link that post [again here so you can follow along. Give that fix a try and hopefully, that will let you use those pins for PWM.](Johnny-Five Inventor's Kit pins issue - SparkFun Electronics Forum)