Micro controller programming. (my erorrs in it)

[notgodsarmy666 0]

I am not very versed in that kind of programming,

but I managed to write the following code so far:

local modem=component.proxy(component.list("modem")())
local turbine=component.proxy(component.list("br_turbine")())
modem.open(1)
local target = false
while true do
	local e, to, from, _, _, command = computer.pullSignal()
	if e == "modem_message" then
		if command == "s" then
			modem.send(from,1, "Handshake")
			local target = from
		elseif command == "a" then
			if (turbine.getActive()) then
				turbine.setActive(false)
			else
				turbine.setActive(true)
			end
		elseif command == "c" then
			if (turbine.getInductorEngaged()) then
				turbine.setInductorEngaged(false)
			else
				turbine.setInductorEngaged(true)
			end
		elseif (target) then
			local data1 = tostring(turbine.getActive())
			local data2 = tostring(turbine.setInductorEngaged())
			local data3 = tostring(turbine.getRotorSpeed())
			modem.send(target,1, data1, data2, data3)
		end
	end
end

But if I try to run it I only get the error message:

Quote

bad argument #1 (string expected, got nil)

and I haven't a clue what did I wrong where.

[Molinko 43]

It's pretty hard to tell where exactly this is coming from. I dont have br and im too lazy to install a modpack with it.... However, I would usggest littering your code with print statements to see where specifically the code is failing... Try this and see if provides any clues...

local modem=component.proxy(component.list("modem")())
local turbine=component.proxy(component.list("br_turbine")())
modem.open(1)
local target = false
print "main loop start."
while true do
	local e, to, from, _, _, command = computer.pullSignal()
	if e == "modem_message" then
    	print("modem_message event. from: '" .. from .. "'")
		if command == "s" then
      		print "'s' command. sending handshake."
			modem.send(from,1, "Handshake")
			local target = from
		elseif command == "a" then
      		print "active command"
			if (turbine.getActive()) then
				turbine.setActive(false)
        		print "turbine inactive"
			else
				turbine.setActive(true)
        		print "turbine active"
			end
		elseif command == "c" then
      		print "inductor command"
			if (turbine.getInductorEngaged()) then
        		print "inductor disengaged"
				turbine.setInductorEngaged(false)
			else
        		print "inductor engaged"
				turbine.setInductorEngaged(true)
			end
		elseif (target) then
      		print "target... how did we get here..."
			local data1 = tostring(turbine.getActive())
			local data2 = tostring(turbine.setInductorEngaged())
			local data3 = tostring(turbine.getRotorSpeed())
      		print("sending turbine data to target")
      		print("target: " .. (type(target)=="string" and target or "target should be string not bool.."))
			modem.send(target,1, data1, data2, data3)
		end
	end
end
print "we made it..."

 

[BrisingrAerowing 12]

local modem=component.proxy(component.list("modem")())
local turbine=component.proxy(component.list("br_turbine")())
local target = nil
modem.open(1)
local target = false
while true do
	local e, to, from, _, _, command = computer.pullSignal()
	if e == "modem_message" then
		if command == "s" then
			modem.send(from,1, "Handshake")
			target = from
		elseif command == "a" then
			if (turbine.getActive()) then
				turbine.setActive(false)
			else
				turbine.setActive(true)
			end
		elseif command == "c" then
			if (turbine.getInductorEngaged()) then
				turbine.setInductorEngaged(false)
			else
				turbine.setInductorEngaged(true)
			end
		end
		if (target) then
			local data1 = tostring(turbine.getActive())
			local data2 = tostring(turbine.setInductorEngaged(true))
			local data3 = tostring(turbine.getRotorSpeed())
			modem.send(target,1, data1, data2, data3)
		end
	end
end

This should do it. When you defined target, it was local to the block it was defined in, and nil outside. You also didn't pass a boolean to setInductorEngaged, but since I don't use BR / ER, I don't know much about the API, and it may not even need an argument.

[Nexarius 18]

How can this code work at all?

The big reactor turbine is an external component.

As far as I know the only interaction with the world is possible with a wireles modem and redstone signals.

 

I guess component.list("br_turbine") is nil and component.proxy(nil) doesn't work so it ends in line 2.

[Molinko 43]

When you're dumb and overlook the obvious..   thanks. I don't know why I didn't think of that...