Monitoring shelly pro 4 PM

juntiedt · 26 December 2022 11:34

I am using the shelly pro 4 PM to switch valves of my floor heating on and off. Switching is done per http request but monitoring uses MQTT. That’s fine unless you want to know your daily energy usage. Therefore, you must read your energy data at midnight per http-request. I have both versions included in the flow. The picture shows the UI of my MQTT monitoring. These are the abbreviation I used (DGWZ: Top floor living room, DGSZ: Top floor bedroom, DGGZ: Top floor guestroom, DGBZ: Top floor bathroom)

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msg.payload[\"switch:0\"].apower;\nlet power1 = msg.payload[\"switch:1\"].apower;\nlet power2 = msg.payload[\"switch:2\"].apower;\nlet power3 = msg.payload[\"switch:3\"].apower;\n\nlet totalpower = parseFloat((power0 + power1 + power2 + power3).toFixed(2)) + \" Watt\";\n\nlet current0 = msg.payload[\"switch:0\"].current;\nlet current1 = msg.payload[\"switch:1\"].current;\nlet current2 = msg.payload[\"switch:2\"].current;\nlet current3 = msg.payload[\"switch:3\"].current;\n\nlet totalcurrent = parseFloat(((current0 + current1 + current2 + current3)/4).toFixed(3)) + \" amp\";\n\nlet voltage0 = msg.payload[\"switch:0\"].voltage;\nlet voltage1 = msg.payload[\"switch:1\"].voltage;\nlet voltage2 = msg.payload[\"switch:2\"].voltage;\nlet voltage3 = msg.payload[\"switch:3\"].voltage;\n\nlet totalvoltage = parseFloat(((voltage0 + voltage1 + voltage2 + voltage3)/4).toFixed(2)) + \" Volt\";\n\nlet temperature0 = msg.payload[\"switch:0\"].temperature.tC;\nlet temperature1 = 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juntiedt · 16 January 2023 12:02

This is an update of my shelly pro 4 pm flow:

Now you just have to set your shelly id once on top of the node
you get firmware update info top left (currently there is a new version 13 beta)
wifi strength is displayed top right
in order to get ok graphics, you have to check the topics in the initialisation node and the main node. The topics must be identical.

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'<font color=\"#000000\">off</font>' : '<font color=\"#ff0000\">on</font>';\n    let stat1 = msg.payload[id + \"/status/switch:1\"].output === false ? '<font color=\"#000000\">off</font>' : '<font color=\"#ff0000\">on</font>';\n    let stat2 = msg.payload[id + \"/status/switch:2\"].output === false ? '<font color=\"#000000\">off</font>' : '<font color=\"#ff0000\">on</font>';\n    let stat3 = msg.payload[id + \"/status/switch:3\"].output === false ? '<font color=\"#000000\">off</font>' : '<font color=\"#ff0000\">on</font>';\n\n    return[\n        null,\n        null,\n        {payload:timestamp},\n        {payload:totalenergy},\n        {payload:totalpower},\n        {payload:totalcurrent},\n        {payload:totalvoltage},\n        {payload:totaltemperature},\n        {payload:totaltemperaturealarm},             \n        {payload:stat0},\n        {payload:stat1},\n        {payload:stat2},\n        {payload:stat3},\n        {payload:power0, topic:\"DGWZ\"},\n        {payload:power1, topic:\"DGSZ\"},\n        {payload:power2, topic:\"DGGZ\"},\n        {payload:power3, topic:\"DGBZ\"}                \n    ];\n}\n\n//--------------------------------------------------------------------\n\nfunction date_time_string() {\n    const date = new Date(Date.now());\n    const year = date.getFullYear();\n    const month = (\"0\" + (date.getMonth() + 1)).slice(-2);\n    const day = (\"0\" + date.getDate()).slice(-2);\n    const hours = (\"0\" + date.getHours()).slice(-2);\n    const minutes = (\"0\" + date.getMinutes()).slice(-2);\n    const seconds = (\"0\" + date.getSeconds()).slice(-2);\n    let datetimestring = day + \"-\" + month + \"-\" + year + \" \" + hours + ':' + minutes + ':' + seconds;\n    return datetimestring;\n}\n\n//--------------------------------------------------------------------\n\nfunction wifi_out(wifiin) {\n    let rssi = wifiin;\n    let color;\n    if (rssi < -80) {\n        color = 'red';\n    }\n    else if (rssi < -70) {\n        color = '#FFC300';\n    }\n    else {\n        color = 'green';\n    }\n    rssi = rssi.toString();\n    return ({ \"topic\": rssi, \"payload\": color });\n}\n\n//--------------------------------------------------------------------\n\nfunction check_energy(data) {\n    let new_energy = data;\n    if (new_energy < context.get('last_energy')) {\n        new_energy = new_energy + context.get('last_energy');\n    }\n    context.set('last_energy', new_energy);\n    return new_energy;\n}\n\n/*\n\n// persisting energy data --> need to change config.js\n\nfunction check_energy(data) {\n    let new_energy = data;\n    if (new_energy < context.get('last_energy,file')) {\n        new_energy = new_energy + context.get('last_energy,file');\n    }\n    context.set('last_energy,file', new_energy);\n    //node.warn(new_energy);\n    return new_energy;\n}\n\n*/\n\n//--------------------------------------------------------------------","outputs":17,"noerr":0,"initialize":"// Code added here will be run once\n// whenever the node is started.\ncontext.set('last_energy', 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lu4t · 17 January 2023 21:34

talking about monitorig a Shelly 4 PM.... you might want to check this use-case:

juntiedt · 17 January 2023 22:08

I know this. Look at my post "shelly button actions to node red".
It shows only on and off.
I am using this method to switch z- wave plugs with shelly butons.
Power and energy changes have to be handled differently.
By the way, with shelly pro 4 pm it is different.

juntiedt · 10 February 2023 14:10

This is version 2 of the shelly pro 4 monitoring. It is a complete redesign and now has 4 channel monitoring. New incoming data will change the background of the relevant fields.
As I am monitoring 15+ shellies there are many http-requests which, when not serialized, created network troubles. Therefore, I have implemented a central http-request with rate limiter which will be called from the link-node.
Unfortunately, the size of the flow is slightly to big for posting it the usual way. Therefore, please download the text file.

shelly pro4 pm version 2.txt (32.6 KB)

juntiedt · 10 February 2023 19:00

juntiedt · 14 March 2023 10:00

I found a littel problem in the node:
please change "false" to "true"
It should look like below:

case "firmware":
    let update = msg.payload;
    delete msg.payload;
    if (update === true) {

false means green color or no update available

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Monitoring shelly pro 4 PM

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