I am trying to connect the mega io extension for raspberry to node red i saw it in this video an wanted to know how they did it.
Did you look at that board’s Kickstarter page?
yes i clicked on the relay test link and got this error back
The requested URL /megaio/node-red/clipboard-Relay-Test.txt was not found on this server.
do a google search 'mega io hat rpi' find the kickstarter page and read it.
thanks i found it but cant find the code to turn on the relays
img from site
well it looks like that flow is using an EXEC node to send things to the mega. Maybe you shoud ask on the kickstarter page or go to the user's tindie page and ask