Widgetlords Controller - Node-Red, Raspberry Pi Controller Build

Aquarium Specialty
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Your temps look really good on the Pi 4. If it starts to concern you as the summer warms up and you are pushing the CPU a bit more with increased monitoring/control activity, I recommend the Pimoroni
Fan SHIM. It was 105 here today (southern AZ about 1/2 hr from the Mex border), so I kept my home office at about 81-82degF... My RaspberryPi4 CPU stayed right around 50degC. Like you I have the Atlas-Scientific Tentacle T3 installed.. The Pimoroni is a nice fit. Only kicks on on system boot up and when I am doing allot of interaction with the Dashboard on the local 8" LCD (you won't have that issue)

Pimoroni Fan SHIM

fan-shim-zoom_1024x1024.jpg
 
BRS
FischAutoTechGarten said:
Your temps look really good on the Pi 4. If it starts to concern you as the summer warms up and you are pushing the CPU a bit more with increased monitoring/control activity, I recommend the Pimoroni
Fan SHIM. It was 105 here today (southern AZ about 1/2 hr from the Mex border), so I kept my home office at about 81-82degF... My RaspberryPi4 CPU stayed right around 50degC. Like you I have the Atlas-Scientific Tentacle T3 installed.. The Pimoroni is a nice fit. Only kicks on on system boot up and when I am doing allot of interaction with the Dashboard on the local 8" LCD (you won't have that issue)

Pimoroni Fan SHIM

fan-shim-zoom_1024x1024.jpg
Click to expand...
Not sure if this will fit between the Pi and Tentacle board...but it might be a consideration. While putting together the ezo board flows, the pi hit 56 degrees at ~12% CPU load.
 
Tidal Gardens
Probes are operational! It isn't perfect, but all the major functionality is there.

This flow queries your Pi on boot to find which I2C addresses are in use, then sends a "Status" command to those I2C addresses to see if they respond with an expected Ezo board response. If so, it sets some flow context variables assigning I2C address to Ezo board. If you change the I2C address, it triggers the scan again and variables are updated.

Calibration is a little clunky but works as expected. Eventually I'll get around to developing a template for handling calibrations.

I'm not using the EC/DO boards at the moment, but I included them in the flow. Enabling the nodes will allow visibility and display properly on the dashboard.


1588889142127.png


1588889110106.png


And here is the flow!

Code: 
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msg;","outputs":1,"noerr":0,"x":370,"y":1140,"wires":[["891f0ccc.2b364"]]},{"id":"56bf2cd8.331914","type":"comment","z":"3e1670d8.f89fb","name":"Set temperature compensation for pH board.","info":"","x":210,"y":1280,"wires":[]},{"id":"e01e9509.8cbe78","type":"function","z":"3e1670d8.f89fb","name":"Send I2C","func":"msg.payload = Buffer.from(msg.payload, 'ascii');\nmsg.address = flow.get('RTD');\nmsg.command = 83;\n\nreturn msg;","outputs":1,"noerr":0,"x":280,"y":1420,"wires":[["f8fdcd1c.d7c34","60bdc342.bf2fec"]]},{"id":"f8fdcd1c.d7c34","type":"delay","z":"3e1670d8.f89fb","name":"","pauseType":"delay","timeout":"900","timeoutUnits":"milliseconds","rate":"1","nbRateUnits":"1","rateUnits":"second","randomFirst":"1","randomLast":"5","randomUnits":"seconds","drop":false,"x":450,"y":1420,"wires":[["a2857575.29bcd8"]]},{"id":"a2857575.29bcd8","type":"i2c 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 }\n            break;\n        case 'ec':\n            switch (count){\n                case 1:\n                    msg.topic = \"\";\n                    msg.payload = \"Dry probe and wait for reading to stabilize.\";\n                    return [msg,null,null];\n                case 2:\n                    msg.topic = \"\";\n                    msg.payload = \"Place probe in 12,880μS solution and wait for reading to stabilize.\";\n                    return [msg,null,null];\n                case 3:\n                    msg.topic = \"\";\n                    msg.payload = \"Place probe in 80,000μS solution and wait for reading to stabilize.\";\n                    return [msg,null,null];\n            }\n            break;\n        case 'do':\n            switch (count){\n                case 1:\n                    msg.topic = \"\";\n                    msg.payload = \"Place probe in 7.00 solution and wait for reading to stabilize.\";\n                    return [msg,null,null];\n                case 2:\n                    msg.topic = \"\";\n                    msg.payload = \"Place probe in 0.0 solution and wait for reading to stabilize.\";\n                    return [msg,null,null];\n            }\n            break;\n    }\n    \n    context.set('count', 0);\n    msg.topic = \"\";\n    msg.payload = \"Calibration complete!\";\n    return [null,null,msg];\n}","outputs":3,"noerr":0,"x":680,"y":1600,"wires":[["ad4c2eee.88af3"],["ccadac14.983d5"],["264576bc.9f5eca"]]},{"id":"b91e9bbc.c42078","type":"ui_button","z":"3e1670d8.f89fb","name":"Calibrate ORP","group":"cfc5afa4.8f001","order":8,"width":0,"height":0,"passthru":false,"label":"Calibrate","tooltip":"","color":"","bgcolor":"","icon":"","payload":"orp","payloadType":"str","topic":"","x":120,"y":1560,"wires":[["702a3e59.bed5d"]]},{"id":"a83520bf.4de5d","type":"ui_button","z":"3e1670d8.f89fb","name":"Calibrate 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Existing calibration data will be erased.\";\n\nreturn msg;","outputs":1,"noerr":0,"x":330,"y":1600,"wires":[["e75d9530.4a5bf8"]]},{"id":"264576bc.9f5eca","type":"ui_toast","z":"3e1670d8.f89fb","position":"dialog","displayTime":"3","highlight":"","sendall":false,"outputs":1,"ok":"OK","cancel":"","raw":false,"topic":"","name":"OK","x":870,"y":1660,"wires":[[]]},{"id":"ccadac14.983d5","type":"ui_toast","z":"3e1670d8.f89fb","position":"prompt","displayTime":"3","highlight":"","sendall":true,"outputs":1,"ok":"Calibrate","cancel":"Cancel","raw":false,"topic":"","name":"Input","x":870,"y":1600,"wires":[["9792168f.7c77b8","500362e.a48cd9c"]]},{"id":"9792168f.7c77b8","type":"function","z":"3e1670d8.f89fb","name":"Send I2C","func":"switch (msg.probe){\n    case 'ph':\n        switch (msg.count){\n            case 1:\n                msg.topic = \"\";\n                msg.payload = Buffer.from('al,mid,7.00', 'ascii');\n                return msg;\n            case 2:\n                msg.topic = \"\";\n                msg.payload = Buffer.from('al,mid,4.00', 'ascii');\n                return msg;\n            case 3:\n                msg.topic = \"\";\n                msg.payload = Buffer.from('al,mid,10.00', 'ascii');\n                return msg;\n        }\n        break;\n    case 'orp':\n        switch (msg.count){\n            case 1:\n                msg.topic = \"\";\n                msg.payload = Buffer.from('al,225', 'ascii');\n                return msg;\n        }\n        break;\n    case 'temp':\n        switch (msg.count){\n            case 1:\n                msg.topic = \"\";\n                return msg;\n        }\n        break;\n    case 'ec':\n        switch (msg.count){\n            case 1:\n                msg.topic = \"\";\n                msg.payload = Buffer.from('al,dry', 'ascii');\n                return msg;\n            case 2:\n                msg.topic = \"\";\n                msg.payload = Buffer.from('al,low,12880', 'ascii');\n                return msg;\n            case 3:\n                msg.topic = \"\";\n                msg.payload = Buffer.from('al,high,80000', 'ascii');\n                return msg;\n        }\n        break;\n    case 'do':\n        switch (msg.count){\n            case 1:\n                msg.topic = \"\";\n                msg.payload = Buffer.from('al', 'ascii');\n                return msg;\n            case 2:\n                msg.topic = \"\";\n                msg.payload = Buffer.from('al,0', 'ascii');\n                return msg;\n        }\n        break;\n}","outputs":1,"noerr":0,"x":1060,"y":1600,"wires":[["60bdc342.bf2fec"]]},{"id":"6dde7bd5.8e11e4","type":"change","z":"3e1670d8.f89fb","d":true,"name":"Read 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[msg,null,null,null,null];\n    case 'ORP':\n        msg.payload = msg.address;\n        return [null,msg,null,null,null];\n    case 'RTD':\n        msg.payload = msg.address;\n        return [null,null,msg,null,null];\n    case 'EC':\n        msg.payload = msg.address;\n        return [null,null,null,msg,null];\n    case 'D.O.':\n        msg.payload = msg.address;\n        return [null,null,null,null,msg];\n}","outputs":5,"noerr":0,"x":1610,"y":540,"wires":[["92ac2fc5.8733e"],["5420376d.671298"],["cefe098c.76c4d8"],["5ee66589.1145fc"],["9615980c.856288"]],"outputLabels":["Status","","","",""]},{"id":"fc946663.b5c638","type":"function","z":"3e1670d8.f89fb","name":"Status / mV","func":"msg.payload = msg.payload.toString().split(\",\");\n\nswitch(msg.payload[1]){\n    case 'P':\n        msg.restart = 'Powered Off';\n        break;\n    case 'S':\n        msg.restart = 'Software Reset';\n        break;\n    case 'B':\n        msg.restart = 'Brown Out';\n        break;\n    case 'W':\n        msg.restart = 'Watchdog';\n        break;\n    case 'U':\n        msg.restart = 'Unknown';\n        break;\n}\n\nmsg.mv = msg.payload[2];\nflow.set('boot', false);\n\nswitch(msg.address){\n    case flow.get('pH'):\n        return [msg,null,null,null,null];\n    case flow.get('ORP'):\n        return [null,msg,null,null,null];\n    case flow.get('RTD'):\n        return [null,null,msg,null,null];\n    case flow.get('EC'):\n        return [null,null,null,msg,null];\n    case flow.get('D.O.'):\n        return [null,null,null,null,msg];\n}","outputs":5,"noerr":0,"x":1630,"y":80,"wires":[["3a82b59b.328bea","1e4d55e5.4ca63a"],["b642d0a2.db47e","c21245a4.645cb8"],["94a72631.396358","610caf7b.46959"],["f35111a6.a6107","93f35a62.47cef8"],["97a03245.7da29","7ad98710.d13d18"]],"outputLabels":["Status","","","",""]},{"id":"a4d910e0.e5e71","type":"ui_group","z":"","name":"pH","tab":"84bf6815.050b38","order":2,"disp":true,"width":"6","collapse":false},{"id":"cfc5afa4.8f001","type":"ui_group","z":"","name":"ORP","tab":"84bf6815.050b38","order":1,"disp":true,"width":"6","collapse":false},{"id":"9bfb97b9.622ff8","type":"ui_group","z":"","name":"Temperature","tab":"84bf6815.050b38","order":3,"disp":true,"width":"6","collapse":false},{"id":"43cff99.31d3408","type":"ui_group","z":"","name":"Conductivity","tab":"84bf6815.050b38","order":4,"disp":true,"width":"6","collapse":false},{"id":"639e2c86.a112d4","type":"ui_group","z":"","name":"Dissolved Oxygen","tab":"84bf6815.050b38","order":5,"disp":true,"width":"6","collapse":false},{"id":"84bf6815.050b38","type":"ui_tab","z":"","name":"Probes","icon":"dashboard","order":2,"disabled":false,"hidden":false}]
 
Last edited:
MaddyP said:
Not sure if this will fit between the Pi and Tentacle board...but it might be a consideration. While putting together the ezo board flows, the pi hit 56 degrees at ~12% CPU load.
Click to expand...

Maddy, I have mine installed between the Pi and tentacle board... fits perfectly...

It is installed in the SmartPiCase for the RaspberryPi and official 8" Pi LCD TouchScreen. So this Pi is sitting between the SmartPiCase and the AtlasSci Tentacle3, with the FanShim installed.

Have a look at this photo I took with my probes and relay boards disconnected.. You can see there is ample space.

RaspberryPi4FanShimSmartPiCaseTentacle3.jpg


I hover around 50, but will hit 55 at 15% load but just for 1 or 2 fan cycles (10 seconds) on screen changes and bootup... that's it. And my room is 80-82degF (Arizona desert... it's a dry heat :) )

This is not in my actual project enclosure as I still have to cut all my openings with a laser cutter. However, truth be told it will have more breathing space in my final enclosure and there will be an exhaust fan present too.
 
FischAutoTechGarten said:
Maddy, I have mine installed between the Pi and tentacle board... fits perfectly...

It is installed in the SmartPiCase for the RaspberryPi and official 8" Pi LCD TouchScreen. So this Pi is sitting between the SmartPiCase and the AtlasSci Tentacle3, with the FanShim installed.

Have a look at this photo I took with my probes and relay boards disconnected.. You can see there is ample space.

RaspberryPi4FanShimSmartPiCaseTentacle3.jpg


I hover around 50, but will hit 55 at 15% load but just for 1 or 2 fan cycles (10 seconds) on screen changes and bootup... that's it. And my room is 80-82degF (Arizona desert... it's a dry heat :) )

This is not in my actual project enclosure as I still have to cut all my openings with a laser cutter. However, truth be told it will have more breathing space in my final enclosure and there will be an exhaust fan present too.
Click to expand...
Nice! I may need to order one once they come back into stock. Although, I may just install a couple of fans to move air over the entire controller board once mounted in the stand. But even with the probe flow running it still sits around 8% load.
 
MaddyP said:
Probes are operational! It isn't perfect, but all the major functionality is there.

This flow queries your Pi on boot to find which I2C addresses are in use, then sends a "Status" command to those I2C addresses to see if they respond with an expected Ezo board response. If so, it sets some flow context variables assigning I2C address to Ezo board. If you change the I2C address, it triggers the scan again and variables are updated.

Calibration is a little clunky but works as expected. Eventually I'll get around to developing a template for handling calibrations.


1588889142127.png
Click to expand...

Holy Guacamole. You are so much more productive and thorough in your work than I. I sense I have much to glean from this flow. Good work sir!
 
Deltec
Updated and optimized the system page...

1588978992658.png


1588979011220.png



Flow:

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        "z": "",
        "name": "System",
        "icon": "system",
        "order": 3,
        "disabled": false,
        "hidden": false
    }
]
 
While researching how to build the outlets for this controller, I stumbled upon a few different Node-Red projects which integrated TP Link outlets/switches with the node-red-contrib-tplink-smarthome nodes. This seems decent way to implement an outlet schema which would be expandable and placement flexible. And it will free up (4) relays which I can then use for 12-24V components (ato, awc, dosing) and simplify wiring (I was concerned 110VAC would affect sensor data if wires were routed together).

I have chosen the Kasa HS300 to try and implement as it offers (6) individually controllable outlets with power monitoring and is fully supported by TP-Link Smarthome API which is the foundation of node-red-contrib-tplink-smarthome. It should arrive sometime next week. :)

Kasa Smart Wi-Fi Power Strip, 6-Outlets – Kasa Smart

The Kasa Smart Wi-Fi Power Strip is a smarter way to control multiple devices from anywhere.
www.kasasmart.com www.kasasmart.com

1589139264872.png
 
Top Shelf Aquatics
Received the HS300 today! I must say, this is a nice power strip...

1589488738031.png


Once I had it set up on my network (5 minutes) it only took a few minutes using the node-red-contrib-tplink to get a response from the outlet.

1589488643354.png
 
It's a work in progress, but coming along! Trying to build out the dashboard in a way so the elements generate based on connected devices. Will try to do the same with the button/switch elements to reflect the I/O connected, but haven't found a way to "query" the SPI bus yet.

Styling is similar to another popular aquarium controller, however the elements are design using node-red-dashboard, chart.js, and Angular. Also, the colors are much improved. ;)


1589774779727.png



Also updated the javascript for node-red-contrib-tplink to support multi-outlet devices. Mostly working, though sometimes the device disconnects for an unknown reason. I suspect the issue is somewhere in the code. Maybe someone more javascript-savvy could take a look?


1589775435708.png
 
Last edited:
Deltec
MaddyP said:
Styling is similar to another popular aquarium controller, however the elements are design using node-red-dashboard, chart.js, and Angular. Also, the colors are much improved. ;)


1589774779727.png
Click to expand...

Very nice representation of the Off Auto On selection... Very good for taking manual control of the devices and suspending auto control. You do good work. (I've got to stop messing around with glass, wood and metal and get back to the programming and electronics of my own project)
 
hey, heads up on that Pimoni Fan SHIM in the even that you were considering one. Mine is already making noise. I removed it today. kind of far to send it all the way back to the UK for a replacement. I'll contact them to see what the options are.... It really should have lasted longer than 2 months of extremely light use.
 

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    Votes: 3 4.3%
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