Pressure-plate door

[Gin 0]

something that can detect the redstone pulse from a pressureplate to send a pulse to a door, keeping it open until the pressureplate is ran over again.

 

run over plate -> door opens

run over plate again -> door closes

 

I managed to create something that will listen to the pressureplate and output RS but I have no idea how to make it toggle the door to stay open

my patience is running out and googlefu isn't returning anything useful

local component = require("component")
local sd = require("sides")
local rs = require("component.redstone")

if rs.getInput(sd.front) == 15 then
  print("Opening door")
  rs.setOutput(sd.right, 15)
else
  print("Closing door")
  rs.setOutput(sd.right, 0)
end

[feldim2425 8]

local component = require("component")
local sd = require("sides")
local rs = component.redstone
local event = require("event")

local oldSignal = false
local state = false
while true do
  local signal = rs.getInput(sd.front) > 0 --check if we have a redstone signal
  if signal ~= oldSignal then --make sure we don't trigger twice when the plate was stepped on once '
    oldSignal = signal
    if signal then 
      state = not state  --make it so we toggle if signal is true
      if state then
        print("Opening door")
        rs.setOutput(sd.right, 15)
      else
        print("Closing door")
        rs.setOutput(sd.right, 0)
      end
    end
  end
  event.pull("redstone_changed",rs.address,sd.front) --sleep until redstone input on our device's front changes '
end

You need to check if the redstone input is true when you toggle the output. 

 

EDIT: Added ' local event = require("event") '.

[feldim2425 8]

You need a loop.

Otherwise the program will return before you step on the plate.

 

` require("component.redstone") ` is wrong.

"component" is the library with a variable called redstone.

You have to write ` require("component").redstone `

local component = require("component")
local sd = require("sides")
local rs = require("component").redstone

while true do

  if rs.getInput(sd.front) == 15 then
    print("Opening door")
    rs.setOutput(sd.right, 15)
  else
    print("Closing door")
    rs.setOutput(sd.right, 0)
  end

end

You can stop the programm with: Ctl + Alt + C (terminate)

[Gin 0]

If I loop it will keep printing "opening door" / "closing door" and it will shut the door the moment I move from the pressureplate.

This was just something I managed to put together to test if the plate would talk to the computer

<snip>

[natedogith1 4]

Other than a loop you'd also need to: keep track of the state, make sure one step equals one trigger, sleep
 

local component = require("component")
local sd = require("sides")
local rs = component.redstone

local oldSignal = false
local state = false
while true do
  local signal = rs.getInput(sd.front) > 0 --check if we have a redstone signal
  if signal ~= oldSignal then --make sure we don't trigger twice when the plate was stepped on once '
    oldSignal = signal
    state = not state --make it so we toggle
    if state then
      print("Opening door")
      rs.setOutput(sd.right, 15)
    else
      print("Closing door")
      rs.setOutput(sd.right, 0)
    end
  end
  event.pull("redstone_changed",rs.address,sd.front) --sleep until redstone input on our device's front changes '
end

[Gin 0]

Improvements have been made, but it won't keep the door open. the moment I move away from the plate the output on sd.right is set to 0.

Also had to add a 'local event = require("event")' to make it run, but yeah

[Gin 0]

I get double entries from the print("Open/Close door"), but it doesn't really matter. I might omit the messages when I work this into the door/lights opener. It's working as expected now!

Thanks for the help.