Hello,

I am doing a project which consists of having 9 cubes that form a puzzle. When a cube is positioned correctly it emits a green light, otherwise a red light. How can it be possible for a specific cube to know whether or not is in the right position?
p.s I'm a beginner in Arduino.

Thank you in advance!

Hi,
I am trying to read sensor data from a telosb and I am using node-red to save the data but first I wanted to display it correctly. I have used a serial port listener node as an input and it shows the output in the debug pane like this (due tot he printf function in the coding):

I used msg.payload=temp.match(/[a-zA-Z]+|[0-9]+/g); to somehow separate them into ["Humidity","45"] and tried to create message topics to divide. msg.payload = {temp:temp.match(/\d+/)[0],hum:temp.match(/\d+/)[0],light:temp.match(/\d+/)[0]}; I shows this: Which I know is totally wrong. I cannot seem to figure out how to "tell" which value is for temperature, which for humidity since all it does is output it as a string and I want to save it into csv file or a database.
I am a beginner in all this so please be patience :)