Last active
April 28, 2019 16:10
-
-
Save lart2150/07f5ac2ad783c941599a79c5b78fd472 to your computer and use it in GitHub Desktop.
Simple NodeMCU alarm
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| --[[ | |
| I have modules adc,cron,crypto,encoder,file,gpio,http,mqtt,net,node,rtctime,sjson,sntp,struct,tmr,uart,websocket,wifi,tls | |
| uses the tz lib at https://github.com/nodemcu/nodemcu-firmware/tree/master/lua_examples/timezone | |
| logs to multicast udp port 4000 and to the serial | |
| --]] | |
| local bounce = 300 -- Debounce period. 200ms time used to debounce switches | |
| local bounceCnt = 2 | |
| local alarmCnt = {} | |
| currentStates = {} | |
| lastTiggerStart = {} | |
| timezoneOffset = -18000 | |
| tz = nil | |
| print("starting init...") | |
| udpSocket = net.createUDPSocket() | |
| udpSocket:listen(5000) | |
| udpSocket:send(4000, "255.255.255.255", "starting init...") | |
| function httpGetWithRetry(url) | |
| http.get(url, nil, function(code, data) | |
| logMessage("HTTP response code " .. code) | |
| if (code < 0) then | |
| logMessage("HTTP request failed") | |
| end | |
| end) | |
| end | |
| function logMessage(msg) | |
| local timeSeconds = rtctime.get() + timezoneOffset | |
| if (timeSeconds < 1) then | |
| timeSeconds = 0 | |
| end | |
| local tm = rtctime.epoch2cal(timeSeconds) | |
| local time = string.format("%02d:%02d:%02d", tm["hour"], tm["min"], tm["sec"]) | |
| udpSocket:send(4000, "255.255.255.255", time .. ": " .. msg) | |
| print(time .. ": " .. msg) | |
| end | |
| function runNtpSync() | |
| sntp.sync("192.168.1.1", | |
| function(sec, usec, server, info) | |
| logMessage('Ntp ' .. sec .. "." .. usec) | |
| logMessage('Uptime hours ' .. (tmr.time() / 3600)) | |
| timezoneOffset = tz.getoffset(rtctime.get()) | |
| end, | |
| function() | |
| print('failed to sync ntp!') | |
| end , | |
| nil, | |
| 1 | |
| ) | |
| end | |
| for i=1,7 do | |
| print("init pin: " .. i) | |
| gpio.mode(i, gpio.INT, gpio.PULLUP) | |
| local pin = i | |
| local function triggerCallback(level) | |
| if currentStates[pin] == level then | |
| logMessage("state didn't change on pin: " .. pin) | |
| return -- state is the same so don't let the trigger fire | |
| end | |
| local timeNow = rtctime.get() | |
| if timeNow == lastTiggerStart[pin] then | |
| logMessage("pin changed too recently: " .. pin .. " - " .. lastTiggerStart[pin]) | |
| return | |
| end | |
| lastTiggerStart[pin] = timeNow | |
| alarmCnt[pin] = 0; | |
| logMessage("Startime timer for pin " .. pin .. " - " .. level) | |
| local sensorTimer = tmr.create() | |
| sensorTimer:register(bounce, tmr.ALARM_AUTO, function() | |
| local newLevel = gpio.read(pin); | |
| if newLevel ~= level then | |
| logMessage ("Bounce " .. pin) | |
| sensorTimer:unregister() | |
| -- lastTiggerStart[pin] = 0 | |
| return | |
| end | |
| if alarmCnt[pin] < bounceCnt then | |
| alarmCnt[pin] = alarmCnt[pin] + 1 | |
| -- lastTiggerStart[pin] = 0 | |
| return | |
| end | |
| -- lastTiggerStart[pin] = 0 | |
| currentStates[pin] = level | |
| logMessage("State Change pin: " .. pin .. " - " .. level) | |
| sensorTimer:unregister() | |
| httpGetWithRetry("https://example.com/api/door-event/?doorPort=" .. pin .. "&eventType=" .. newLevel) | |
| end) | |
| sensorTimer:start() | |
| end | |
| lastTiggerStart[pin] = -100; | |
| gpio.trig(i, "both", triggerCallback) | |
| currentStates[pin] = gpio.read(pin); | |
| end | |
| print("running...") | |
| udpSocket:send(4000, "255.255.255.255", "running...") | |
| tz = require('tz') | |
| tz.setzone('chicago') | |
| runNtpSync() | |
| local ntpTimer = tmr.create() | |
| ntpTimer:register( | |
| 900000, | |
| tmr.ALARM_AUTO, | |
| function (t) | |
| runNtpSync() | |
| end | |
| ) | |
| ntpTimer:start() |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment