OCS and wireless

Ok I am not a lua programmer so i am coming here trying to get some idea of how to program a wireless sensor turtle so that it reads the sensor data from openCCSensors and then transmits over the redstone network.

You'd want to grab the data from the sensor, then serialize the table and send it via rednet. Something like:

local data = sensor.call("left", "getTargetDetails", "0,0,-2")
rednet.send(12, textutils.serialize(data))

Use textutils.unserialize on the other end to get the data back into table form.

Lyqyd, on 17 January 2013 - 10:09 AM said:

You'd want to grab the data from the sensor, then serialize the table and send it via rednet. Something like:

local data = sensor.call("left", "getTargetDetails", "0,0,-2")
rednet.send(12, textutils.serialize(data))

Use textutils.unserialize on the other end to get the data back into table form.

Awesome. Will try.

Lyqyd, on 17 January 2013 - 10:09 AM said:

You'd want to grab the data from the sensor, then serialize the table and send it via rednet. Something like:

local data = sensor.call("left", "getTargetDetails", "0,0,-2")
rednet.send(12, textutils.serialize(data))

Use textutils.unserialize on the other end to get the data back into table form.

Ok I have my turtle set up. Now to set up the monitor I would just have to have to do something like this:

function update()
  data = textutils.unserialize(rednet.receive())
  return data.Stored
end

That would work right?

Not quite. The first return of rednet.receive is the ID of the sender. You'd want something more like:

local id, message = rednet.receive()
local data = textutils.unserialize(message)
if data then --make sure we got a serialized table, not some other rednet traffic.
  print(data.Stored)
end

Lyqyd, on 17 January 2013 - 11:05 AM said:

Not quite. The first return of rednet.receive is the ID of the sender. You'd want something more like:

local id, message = rednet.receive()
local data = textutils.unserialize(message)
if data then --make sure we got a serialized table, not some other rednet traffic.
  print(data.Stored)
end

Just figured that out myself! ^w^ Code is working PERFECTLY now! Just had to make it flush the sending computer's id.

Here was my final code:

mon = peripheral.wrap("right")
rednet.open("left")
function update()
  c,data,d = rednet.receive()
  dataRaw = textutils.unserialize(data)
  return dataRaw.Stored
end
graphI = graph.new(mon, update, "EU Tank", nil, 0, 10000000)
while true do
  graphI:draw()
  sleep(0.5)
end