control arduino LED- i use grasshopper try it and it can work(also can control led turn off and turn on). but why i use same way to connected node it can’t work? [image] [image]

I am no expert but you are feeding a list (albeit it has only one element its still a list) into the Port input. Try giving it just a number. Ps. Looking at the answer that @Kulkul has provided below it has to do with you forgetting to open the port not with the input type. Anyways, why ask a quest…

Control led turn on

Packages

Kulkul November 6, 2016, 7:03pm 3

@NIEN-CHIN_WU Is this the same topic Dynamo connected to arduino which you have discussed earlier?

2 Likes

Topic		Replies	Views
Input and output-Arduino Packages	5	1468	July 23, 2018
Dynamo connected to arduino Packages arduino	14	8626	September 12, 2022
Arduino node working now? Packages	11	1110	August 20, 2018
Dynamo and Arduino Packages	4	592	December 6, 2012
Wireless Connections FAQ	33	3941	June 17, 2017

Control led turn on

Related Topics