On/off delay timer #

Create a resident script with 0 sleep time. Modify the timers table as needed.

Each table key is an input group address (1/1/1 and 1/1/3 in this example).

Each table value is a table containing output group address, ON delay (delayon) and OFF delay (delayoff) values in seconds.

Sending the same ON or OFF value several times does not restart the timer.

if not client then
  timers = {
    ['1/1/1'] = {
      output = '1/1/2', -- binary output
      delayon = 10, -- on delay time (seconds)
      delayoff = 0, -- off delay time (seconds)
    },
    ['1/1/3'] = {
      output = '1/1/4', -- binary output
      delayon = 40, -- on delay time (seconds)
      delayoff = 60, -- off delay time (seconds)
    }
  }

  grp.sender = 'tm'

  function set(timer)
    grp.checkwrite(timer.output, timer.state == 'on')

    timer.state = nil
    timer.ticks = nil
  end

  client = require('localbus').new(0.1)
  client:sethandler('groupwrite', function(event)
    local timer = timers[ event.dst ]

    if timer and event.sender ~= grp.sender then
      local value = tonumber(event.datahex, 16) or 0
      local state = value > 0 and 'on' or 'off'

      if timer.state ~= state then
        timer.state = state

        local ticks = timer['delay' .. state]

        if ticks > 0 then
          timer.ticks = ticks
        else
          set(timer)
        end
      end
    end
  end)
end

client:loop(1)

for _, timer in pairs(timers) do
  if timer.ticks then
    timer.ticks = timer.ticks - 1

    if timer.ticks == 0 then
      set(timer)
    end
  end
end