Rednet.send Trouble

Hello! What I have for you today might be, wait for it,
THE NOOBIEST QUESTION EVER!
I am making a system where a computer sends the word 'help' to another computer
and the receiving computer prints out the id of the person who sent them it. Don't ask why.
It shows the receiving computer is receiving something, but it is not printing.

Sending computers code:

rednet.open("top")
print("ID:")
local id = tonumber(read())
print("Message:")
local m = tonumber(read())
rednet.send(id, m)

Receiving computer's code:

rednet.open("top")
while true do
  id, message = rednet.receive()
   if message == "help" then
   print("This ID needs help:")
   print(id)
  else
	rednet.send(id, "Please send 'help' for troubleshooting.")
end
end

If you need more information feel free to tell me!

Don't tonumber the message. tonumber("help") returns nil.

But if I just do read() It says rednet:53:Expected number

He said the message, not the ID - "rednet.send()" only needs one number.

mrpoopy345, on 24 November 2013 - 05:26 PM said:

Hello! What I have for you today might be, wait for it,
THE NOOBIEST QUESTION EVER!
I am making a system where a computer sends the word 'help' to another computer
and the receiving computer prints out the id of the person who sent them it. Don't ask why.
It shows the receiving computer is receiving something, but it is not printing.

Sending computers code:

rednet.open("top")
print("ID:")
local id = tonumber(read())
print("Message:")
local m = tonumber(read())
rednet.send(id, m)

Receiving computer's code:

rednet.open("top")
while true do
  id, message = rednet.receive()
   if message == "help" then
   print("This ID needs help:")
   print(id)
  else
	rednet.send(id, "Please send 'help' for troubleshooting.")
end
end

If you need more information feel free to tell me!

Okay, I will help you understand since I am new like you. Rednet.send() looks for an ID and a message. That ID is a computer id, and the message is some sort of text.

When you set

m = tonumber(read())

you are making the message, or text, a number. That makes the receiving PC not get the message "help" .


Instead, type

m = read()

that will automatically convert the user input into a string.


Hope I helped! Enter key is broken, sorry if this is smushed. Please +1 if I helped, want to show I am helping this forum grow :)/> ~Papa Beans


EDIT*** Enter key working now!