# Monitoring devices
**URL:** https://discourse.nodered.org/t/monitoring-devices/30742
**Category:** Dashboard
**Created:** [26 July 2020 20:14 UTC](https://discourse.nodered.org/t/monitoring-devices/30742 "2020-07-26T20:14:53Z")
**Posts on this page:** 14
**Page:** 1
### Author:  [@federicobalm](https://discourse.nodered.org/u/federicobalm)
#### Post date: [26 July 2020 20:14 UTC](https://discourse.nodered.org/t/monitoring-devices/30742/1 "2020-07-26T20:14:53Z")
Hello everyone !!
I hope you can help me, I am taking my first steps in the world of noder-red and I am looking forward to making a dashboard for monitoring the IP devices that I have in the offices of my work.
Basically I have these 4 offices, with their respective devices:
Office 1:
- printer: 192.168.1.11
- pc 1: 192.168.1.12
- pc 2: 192.168.1.13
- pc 3: 192.168.1.14
Office 2:
- printer: 192.168.2.11
- pc 1: 192.168.2.12
- pc 2: 192.168.2.13
- pc 3: 192.168.2.14
Office 3:
- printer: 192.168.3.11
- pc 1: 192.168.3.12
- pc 2: 192.168.3.13
- pc 3: 192.168.3.14
Office 4:
- printer: 192.168.4.11
- pc 1: 192.168.4.12
- pc 2: 192.168.4.13
- pc 3: 192.168.4.14
I started creating the tables with ui\_tables and a function to be able to test and inject simulated data, in this way I could see that everything is going well in the status monitor.
Here is what I did so far.
```auto
[{"id":"8eb12775.483628","type":"inject","z":"f16e1fbf.b19a8","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"[{\"ID\":\"01\",\"Oficina\":\"01\",\"Latencia Print\":\"103\",\"Impresora\":\"ok\",\"PC 1\":\"ok\",\"PC 2\":\"ok\",\"PC 3\":\"ok\"}, {\"ID\":\"02\",\"Oficina\":\"01\",\"Latencia Print\":\"103\",\"Impresora\":\"ok\",\"PC 2\":\"ok\",\"PC 2\":\"ok\",\"PC 3\":\"ok\"}, {\"ID\":\"03\",\"Oficina\":\"01\",\"Latencia Print\":\"103\",\"Impresora\":\"ok\",\"PC 3\":\"ok\",\"PC 2\":\"ok\",\"PC 3\":\"ok\"}, {\"ID\":\"04\",\"Oficina\":\"01\",\"Latencia Print\":\"103\",\"Impresora\":\"ok\",\"PC 4\":\"ok\",\"PC 2\":\"ok\",\"PC 3\":\"ok\"}, {\"ID\":\"05\",\"Oficina\":\"02\",\"Latencia Print\":\"103\",\"Impresora\":\"ok\",\"PC 1\":\"ok\",\"PC 2\":\"ok\",\"PC 3\":\"ok\"}, {\"ID\":\"06\",\"Oficina\":\"02\",\"Latencia Print\":\"103\",\"Impresora\":\"ok\",\"PC 2\":\"ok\",\"PC 2\":\"ok\",\"PC 3\":\"ok\"}, {\"ID\":\"07\",\"Oficina\":\"02\",\"Latencia Print\":\"103\",\"Impresora\":\"ok\",\"PC 3\":\"ok\",\"PC 2\":\"ok\",\"PC 3\":\"ok\"}, {\"ID\":\"08\",\"Oficina\":\"02\",\"Latencia Print\":\"103\",\"Impresora\":\"ok\",\"PC 4\":\"ok\",\"PC 2\":\"ok\",\"PC 3\":\"ok\"}, {\"ID\":\"09\",\"Oficina\":\"03\",\"Latencia Print\":\"103\",\"Impresora\":\"ok\",\"PC 1\":\"ok\",\"PC 2\":\"ok\",\"PC 3\":\"ok\"}, {\"ID\":\"10\",\"Oficina\":\"03\",\"Latencia Print\":\"103\",\"Impresora\":\"ok\",\"PC 2\":\"ok\",\"PC 2\":\"ok\",\"PC 3\":\"ok\"}, {\"ID\":\"11\",\"Oficina\":\"03\",\"Latencia Print\":\"103\",\"Impresora\":\"ok\",\"PC 3\":\"ok\",\"PC 2\":\"ok\",\"PC 3\":\"ok\"}, {\"ID\":\"12\",\"Oficina\":\"03\",\"Latencia Print\":\"103\",\"Impresora\":\"ok\",\"PC 4\":\"ok\",\"PC 2\":\"ok\",\"PC 3\":\"ok\"}]","payloadType":"json","x":270,"y":160,"wires":[["5592d69.1974928"]]},{"id":"5592d69.1974928","type":"ui_table","z":"f16e1fbf.b19a8","group":"8b1db693.daf448","name":"","order":4,"width":0,"height":0,"columns":[],"outputs":0,"cts":false,"x":510,"y":160,"wires":[]},{"id":"8b1db693.daf448","type":"ui_group","z":"","name":"Ofiicinas","tab":"ef7098ce.c64e78","order":1,"disp":true,"width":"25","collapse":false},{"id":"ef7098ce.c64e78","type":"ui_tab","z":"","name":"Federico","icon":"track_changes","order":1,"disabled":false,"hidden":false}]
```
The question is that what I would like is to find a way that every 10 seconds a ping is made to each of the hosts and, depending on the answer, to complete the fields in the table.
I don't know if I can make myself understood. Could you give me some help in this regard or at least tell me what path should I take? I searched the internet but I did not find anything similar, I found something at [Monitoring IoT by Ping](https://discourse.nodered.org/t/monitoring-iot-by-ping/23718/28) but it does not work for me.
Thanks everyone for your help!
Sorry for my English, it is not very good.
---
### Author:  [@ghayne](https://discourse.nodered.org/u/ghayne)
#### Post date: [26 July 2020 20:21 UTC](https://discourse.nodered.org/t/monitoring-devices/30742/2 "2020-07-26T20:21:46Z")
> [@federicobalm](#):
>
> Office 1:
>
> - printer: 192.168.1.11
> - pc 1: 192.168.1.11
> - pc 2: 192.168.1.11
> - pc 3: 192.168.1.11
>
> Office 2:
>
> - printer: 192.168.2.11
> - pc 1: 192.168.2.11
> - pc 2: 192.168.2.11
> - pc 3: 192.168.2.11
>
> Office 3:
>
> - printer: 192.168.3.11
> - pc 1: 192.168.3.11
> - pc 2: 192.168.3.11
> - pc 3: 192.168.3.11
>
> Office 4:
>
> - printer: 192.168.4.11
> - pc 1: 192.168.4.11
> - pc 2: 192.168.4.11
> - pc 3: 192.168.4.11
This IP addressing cannot really function at all, you have multiple machines with the same IP address. Have you maybe made a mistake while writting this down?
---
### Author:  [@federicobalm](https://discourse.nodered.org/u/federicobalm)
#### Post date: [26 July 2020 20:26 UTC](https://discourse.nodered.org/t/monitoring-devices/30742/3 "2020-07-26T20:26:35Z")
Sorry !!! .... I did abuse of "copy and paste" and avoid modifying the ip
these are the correct directions
```auto
Office 1:
- printer: 192.168.1.11
- pc 1: 192.168.1.12
- pc 2: 192.168.1.13
- pc 3: 192.168.1.14
Office 2:
- printer: 192.168.2.11
- pc 1: 192.168.2.12
- pc 2: 192.168.2.13
- pc 3: 192.168.2.14
Office 3:
- printer: 192.168.3.11
- pc 1: 192.168.3.12
- pc 2: 192.168.3.13
- pc 3: 192.168.3.14
Office 4:
- printer: 192.168.4.11
- pc 1: 192.168.4.12
- pc 2: 192.168.4.13
- pc 3: 192.168.4.14
```
---
### Author:  [@ghayne](https://discourse.nodered.org/u/ghayne)
#### Post date: [26 July 2020 20:29 UTC](https://discourse.nodered.org/t/monitoring-devices/30742/4 "2020-07-26T20:29:07Z")
I thought so!
Your English is fine!
---
### Author:  [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)
#### Post date: [26 July 2020 20:31 UTC](https://discourse.nodered.org/t/monitoring-devices/30742/5 "2020-07-26T20:31:25Z")
> [@federicobalm](#):
>
> I found something at [Monitoring IoT by Ping](https://discourse.nodered.org/t/monitoring-iot-by-ping/23718/28) but it does not work for me.
What doesn't work? Show us a screenshot of your flow and where you enter the IP addresses.
---
### Author:  [@ghayne](https://discourse.nodered.org/u/ghayne)
#### Post date: [26 July 2020 20:32 UTC](https://discourse.nodered.org/t/monitoring-devices/30742/6 "2020-07-26T20:32:31Z")
Ah, just saw that the flow you wanted to post is missing in your first post!
---
### Author:  [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)
#### Post date: [26 July 2020 20:32 UTC](https://discourse.nodered.org/t/monitoring-devices/30742/7 "2020-07-26T20:32:33Z")
> [@federicobalm](#):
>
> Here is what I did so far.
^ You didn't post anything
---
### Author:  [@federicobalm](https://discourse.nodered.org/u/federicobalm)
#### Post date: [26 July 2020 20:52 UTC](https://discourse.nodered.org/t/monitoring-devices/30742/8 "2020-07-26T20:52:54Z")
I already uploaded it, I had copied the code from only one node. it's OK now
---
### Author:  [@federicobalm](https://discourse.nodered.org/u/federicobalm)
#### Post date: [26 July 2020 20:59 UTC](https://discourse.nodered.org/t/monitoring-devices/30742/9 "2020-07-26T20:59:31Z")
this is the ip:
```auto
[ {"name":"router","host":"192.168.0.1"},
{"name":"cel fede","host":"192.168.0.3"},
{"name":"chromecast","host":"192.168.0.4"},
{"name":"DESKTOP-BU4OE2S","host":"192.168.0.5"},
{"name":"desconocido","host":"192.168.0.9"},
{"name":"android","host":"192.168.0.11"},
{"name":"raspberry","host":"192.168.0.21"},
{"name":"DESKTOP-Q5EN2V","host":"192.168.0.38"},
{"name":"virtual","host":"192.168.0.13"} ]
```
and here are the screenshots
---
### Author:  [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)
#### Post date: [26 July 2020 21:02 UTC](https://discourse.nodered.org/t/monitoring-devices/30742/10 "2020-07-26T21:02:07Z")
the flow you posted is ...
that is nothing like the screen shot of your flow.
---
### Author:  [@federicobalm](https://discourse.nodered.org/u/federicobalm)
#### Post date: [26 July 2020 21:07 UTC](https://discourse.nodered.org/t/monitoring-devices/30742/11 "2020-07-26T21:07:29Z")
That's right, as what was published in [https://discourse.nodered.org/t/monitoring-iot-by-ping/23718/28](https://discourse.nodered.org/t/monitoring-iot-by-ping/23718/28) did not work, I decided to start from 0 with a new one.
The caption I uploaded is from when I tried the code from [Monitoring IoT by Ping](https://discourse.nodered.org/t/monitoring-iot-by-ping/23718/28).
---
### Author:  [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)
#### Post date: [26 July 2020 21:09 UTC](https://discourse.nodered.org/t/monitoring-devices/30742/12 "2020-07-26T21:09:53Z")
ok, im lost off with which one you are trying to get working - the flow you posted has no pinging etc.
the flow from the Monitoring IoT thread had a small typo (pretty easy to fix - i'll go edit the post in a second)
here is the fixed version...
```auto
[{"id":"51f7207a.baa53","type":"inject","z":"a878aaaa.79a018","name":" ***Setup devices to ping here***","topic":"","payload":"[{\"name\":\"router\",\"host\":\"192.168.1.1\"},{\"name\":\"tv\",\"host\":\"192.168.1.51\"},{\"name\":\"smart speaker\",\"host\":\"192.168.1.52\"},{\"name\":\"bad device\",\"host\":\"192.168.2.99\"}]","payloadType":"json","repeat":"20","crontab":"","once":false,"onceDelay":0.1,"x":320,"y":260,"wires":[["cf66e372.27656"]]},{"id":"99c8413.a9a79c","type":"template","z":"a878aaaa.79a018","name":"build html table","field":"html","fieldType":"msg","format":"handlebars","syntax":"mustache","template":"\n\n \n | Name | \n Host | \n Status | \n
\n {{#tableData}}\n \n | {{{name}}} | \n {{host}} | \n {{{stateInfo}}} | \n
\n {{/tableData}}\n
","x":660,"y":320,"wires":[["c9452322.9411d","90592906.29a578"]]},{"id":"c9452322.9411d","type":"debug","z":"a878aaaa.79a018","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","targetType":"full","x":830,"y":360,"wires":[]},{"id":"3988b1f3.69647e","type":"inject","z":"a878aaaa.79a018","name":"","topic":"","payload":"[{\"name\":\"router\",\"ip\":\"192.168.0.1\"},{\"name\":\"tv\",\"ip\":\"192.168.0.51\"},{\"name\":\"smart speaker\",\"ip\":\"192.168.0.52\"},{\"name\":\"bad device\",\"ip\":\"192.168.1.99\"}]","payloadType":"json","repeat":"30","crontab":"","once":false,"onceDelay":0.1,"x":230,"y":320,"wires":[["4e150f7e.63b67"]]},{"id":"4e150f7e.63b67","type":"function","z":"a878aaaa.79a018","name":"convert pingResults to array","func":"let pingResults = flow.get(\"pingResults\") || {}\nlet now = new Date();\n\nlet tableData = [];\nfor (let k in pingResults) {\n let r = pingResults[k];\n r.age = now - r.timestamp\n if(r.age > 18000){\n r.state = \"old\"\n }\n if(r.state == \"ok\"){\n r.rowclass = \"good\";\n r.stateInfo = ' OK'\n } else if(r.state == \"ng\") {\n r.rowclass = \"bad\";\n r.stateInfo = ' NG'\n } else {\n r.rowclass = \"unknown\";\n r.stateInfo = ' ' + r.state\n }\n tableData.push(r);\n}\n\nmsg.tableData = tableData\n\nreturn msg;","outputs":1,"noerr":0,"x":440,"y":320,"wires":[["99c8413.a9a79c","71f260f1.aacbf"]]},{"id":"cf66e372.27656","type":"ping","z":"a878aaaa.79a018","mode":"triggered","name":"","host":"","timer":"20","inputs":1,"x":530,"y":260,"wires":[["ddef4dbb.e8897"]]},{"id":"cf6a929c.6311a","type":"debug","z":"a878aaaa.79a018","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","targetType":"full","x":830,"y":260,"wires":[]},{"id":"ddef4dbb.e8897","type":"function","z":"a878aaaa.79a018","name":"Store Results","func":"let pingResults = flow.get(\"pingResults\") || {}\nlet thisPing = pingResults[msg.topic] || {};\nlet success = msg.payload !== false && msg.payload >= 0;\n\nthisPing.name = msg.ping.name;\nthisPing.host = msg.ping.host;\nthisPing.timestamp = new Date();\nthisPing.responseTime = success ? msg.payload : null;\nthisPing.state = success ? \"ok\" : \"ng\" ;\n\npingResults[msg.topic] = thisPing;//store ping obj in pingResults\nflow.set(\"pingResults\",pingResults);//save pingResults in flow context\n\nmsg.payload = thisPing;\nreturn msg;","outputs":1,"noerr":0,"x":680,"y":260,"wires":[["cf6a929c.6311a"]]},{"id":"90592906.29a578","type":"ui_template","z":"a878aaaa.79a018","group":"3dc35e31.466292","name":"","order":3,"width":"6","height":"5","format":"\n\n","storeOutMessages":true,"fwdInMessages":true,"templateScope":"local","x":840,"y":320,"wires":[[]]},{"id":"71f260f1.aacbf","type":"debug","z":"a878aaaa.79a018","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","targetType":"full","x":590,"y":400,"wires":[]},{"id":"3dc35e31.466292","type":"ui_group","z":"","name":"Default","tab":"5132060d.4cde48","order":1,"disp":true,"width":"6","collapse":false},{"id":"5132060d.4cde48","type":"ui_tab","z":"","name":"Home","icon":"dashboard","disabled":false,"hidden":false}]
```
---
### Author:  [@federicobalm](https://discourse.nodered.org/u/federicobalm)
#### Post date: [26 July 2020 21:14 UTC](https://discourse.nodered.org/t/monitoring-devices/30742/13 "2020-07-26T21:14:48Z")
Ohhh yes now go, my apologies but the truth I could not find the typographical error.
With this arrangement that you made, I will try to continue advancing and I will tell you how I am doing. Thank you!
---
### Author:  [@system](https://discourse.nodered.org/u/system)
#### Post date: [25 August 2020 21:14 UTC](https://discourse.nodered.org/t/monitoring-devices/30742/14 "2020-08-25T21:14:58Z")
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