ESP8266-WaterController/control.lua at master · breagan/ESP8266-WaterController · GitHub

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collectgarbage()
tmr.stop(0)               -- stops all timers.
tmr.stop(1)
tmr.stop(2)
gpio.write(zone0, gpio.LOW)   -- turns off all gpios.
gpio.write(zone1, gpio.LOW)
gpio.write(zone2, gpio.LOW)
if(payload2 ==  nil) then return end          --  if payload2 is empty exit from this script.  This happens when server is a webpage sends a header wih no information
-- running script with no zone or time info will panic the contoller.
zone0test = string.find(payload2, "zone0=")   -- find zone0 then save the time in var zone0time.
zone0time = string.sub(payload2,zone0test + 6, 14)
print(zone0time)								-- used in debugging.
zone1test = string.find(payload2, "zone1=")  --  find zone1 and save time in var zone1time.
zone1time = string.sub(payload2,zone1test + 6, 23)
print(zone1time)
zone2test = string.find(payload2, "zone2=")  --  find zone2 and save  time in var zone2time.
zone2time = string.sub(payload2,zone2test + 6, 32)
print(zone2time)

if zone0time == "00" and zone1time == "00" and zone2time == "00" then   --  if all times are zero, stop the script.
return
end

print(node.heap())

--  45 min  = 45 * 1000 * 60 //   45 * 60000  = 2 700 000

-- 100 converts input 45 to 4.5 seconds.  handy for debuging.
-- 60000 converts input 45 to 45 minuits
--multiplyer = 100
multiplyer = 60000

totaltimestart = tmr.now(3)   -- used for debugging to verify timers are working correctly.

start = tmr.now(0)            -- debugging.

if zone0time == "00" then     -- need to send two digits in header for zonetime 00 us used for 0 or no time.
     duration = 1 			  -- NodeMcu does math operations on intergers only with this build.  00 converts to 1
else
     duration = zone0time * multiplyer   -- all other numbers are multipled by multiplyer to set duration.
end


------------------------------------------------Zone0
if duration ~= 1 then                  -- unless duration is 1 the gpio is set to high and the valve is turned on.
gpio.write(zone0, gpio.HIGH)

end
print("Zone0 on")
tmr.alarm(0, duration, 0, function()     --  timer is started and runs for the duration.   Script does nothing untill this timer reaches the duration time.
endtime = tmr.now(0)                     --
print("  timer0 duration: "..endtime - start)
print("Zone0 off")
gpio.write(zone0, gpio.LOW)             --  gpio is reset to LOW and valve is turned off.
tmr.delay(500000)                       --  A short delay to ensure that only one valve is operated at a time.

 ------------------------------------------------Zone1


	 if zone1time == "00" then			--  Repeat for the zones 1
          duration = 1
          --print("duration: "..duration)
     else
         duration = zone1time * multiplyer
     end
     start = tmr.now(1)
     if duration ~= 1 then
     gpio.write(zone1, gpio.HIGH)
     print("Zone1 on")
      end

     tmr.alarm(0, duration, 0, function()
     endtime = tmr.now(1)
     print("  timer1 duration: "..endtime - start)
     print("Zone1 off")
     gpio.write(zone1, gpio.LOW)
     tmr.delay(500000)

 ------------------------------------------------Zone2

         if zone2time == "00" then       --  Repeat for the zones 2
          duration = 1
         else
          duration = zone2time * multiplyer
         end
          print("Zone2 on")
          if duration ~= 1 then
          gpio.write(zone2, gpio.HIGH)
          end
          start = tmr.now(2)
          tmr.alarm(0, duration, 0, function()
          endtime = tmr.now(2)
          print("  timer2 duration: "..endtime - start)
          print("Zone2 off")
          gpio.write(zone2, gpio.LOW)

totalendtime = tmr.now(3)
print("total duration: "..(totalendtime - totaltimestart))           ---  debugging
print(node.heap())
          end)
     end)
end)

collectgarbage()