We're delving into Node Red for the first time to control our humidity. We'll set up a humidity target and tolerance slider in our Home Assistant Dashboard and configure a Node Red flow to turn a humidifier on and off based on our settings. This flow can be applied to many other tasks!
**LINKS FROM VIDEO**
- Support LEDG: paypal.me/supportledg
- Home Assistant Config Files: github.com/ledgardener/HomeAs...
- Node Red Export Scrubber: zachowj.github.io/node-red-co...
- Link to repo for my system: github.com/ledgardener/garden...
**PARTS IN VIDEO**
- Ruuvi Tag: ruuvi.com/
- TP-LINK HS105 smart outlet: amzn.to/3csgVVs
- All Amazon links below are affiliate links, which means LEDgardener receives a commission from Amazon if you make a purchase after following the link, at no extra cost to you. Thank you for supporting the channel!
**MY GARDEN AUTOMATION SYSTEM**
**CONTROL BOX**
BUD Industries NBF-32026 Plastic ABS NEMA Economy Box with Solid Door, 15-47/64" Length x 11-51/64" Width x 6-9/32" Height, Light Gray Finish:
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Plastic Internal Panel to Mount Gear:
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Panel-Mount AC Connector for Box:
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Nylon Standoffs:
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Cable Glands for Passing Cable In and Out of Control box:
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** CONTROL BOX MISC ELECTRONICS **
Amazon Fire Touch Panel Tablet:
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Right-angle Micro USB Cable for Tablet:
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Mean Well 12VDC Power Supply:
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Drok Voltage Stepdown Converter with Readout:
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Dupont Cables:
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Breadboards:
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Screw Terminal Blocks:
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8 Channel Relay Board:
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** DEVELOPMENT BOARDS (CONTROLLERS) **
You can also use other hardware, check out this page for a good writeup:
smarthome.university/home-ass...
Arduino Mega:
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ESP32S WiFi Development Board (Handles WiFi communication between control box and Home Assistant server as well as from inside tent to Home Assistant server):
amzn.to/2JSNdgb
Whitebox Labs Tentacle Shield to Add Atlas Scientific Gear to an Arduino and provide electrical isolation of probes (pH probe needs to be isolated from EC probe):
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** SENSORS **
BME280 Temperature/Humidity/Pressure Sensors for Tent and Control Box:
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Waterproof Temperature Sensor for Nute Reservoir:
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Atlas Scientific Conductivity Kit K 1.0 5-200,000 μS/cm:
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Atlas Scientific pH Kit 0-14 pH:
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Moisture Sensors:
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Catch Basin Float Sensor:
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** PUMPS AND SOLENOIDS **
Peristaltic Pumps:
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Motor Drivers to Control Peristaltic Pump Speed:
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Tubing for Peristaltic Pumps:
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Nutrient Res Stirring Pump:
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Nutrient Fertigation Pump:
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Normally-Open 12V Solenoid (Allows water to flow into system until solenoid is activated, which closes it - used for flood protection. Requires 12VDC power supply and 1/4" spade connectors):
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1/4" Spade Connectors:
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Normally-Closed 12V Solenoid (Restricts water between RO res and Nute Res, requires pump in RO res to push water through it):
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Pump to push water through solenoid:
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** NUTRIENT JAR STIRRING SYSTEM **
Nutrient Jar Stirring Fans:
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Nutrient Jar Magnetic Stir Bars:
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Nutrient Jar Magnets:
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Nutrient Jar Superglue:
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** RESERVOIRS **
Reservoir Totes:
www.homedepot.com/p/HDX-27-Ga...
1/2" Double-Threaded Bulkhead for Connections to Reservoirs:
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1/2" Tubing to go between reservoirs and out to plants:
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Sharkbite swivel to attach tubing between 12V solenoid on RO res and 1/2" float valve on nute mix res (requires wormdrive clamp to secure hose to fitting):
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Nut Res Fill Float Valve:
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1/4" Float valve for DIY Humidifier and RO Res:
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DIY Weigh Scale Kit for Reservoir:
amzn.to/2RI1BfN