Controller
$480
4 valve zones, 128 Modbus devices, BACnet and LoRaWAN.
Assembled in the USA · current lead time: 6 weeks
Choose AC or DC supplyWater, climate, and power, zone by zone
See every zone you run.
Control it from one place.
Put wireless sensors in each room, bench, and bay. Run valves, vents, and lights on the reading instead of just a timer. The Controller continues to operate when the internet stops. Your readings and history stay on site, in your building.
- Up to 47%
- more yield in CEA rooms
- 0
- internet required
- 128
- Modbus devices per Controller
Fig. 0 · OT to IT
Three ways across. Start with one sensor and grow from there.
02 / Physical to digital
Plumbing, electrical, and HVAC on one side. Your IT systems on the other.
The Growbud Controller and Edge Server connect operational technology equipment to your IT systems. Probes, meters, valves, and pumps use Modbus, BACnet MS/TP, and LoRaWAN. Your BMS, your app, and Home Assistant get the same reading over BACnet/IP and REST.
OT to IT4 field devices · 4 destinations
Equipment floor (OT)
Substrate probe · LoRaWAN
46.6 % VWC
Greenhouse
Energy meter · Modbus RTU
6.4 kW · tenant 2B
Building
Walk-in probe · LoRaWAN
37.8 °F · cold room 2
Cold chain
Chiller 1 · BACnet MS/TP
4 starts / hr
Needs attention
The bridge02 / 02
Water content · 3-probe avg
13:0046.6 % VWCin band· forecast
00:003 ramp · 5 maintain · dryback 14.724:00
Your IT systems
BMS · BACnet/IP
46.6 analog value, same reading
Published
Your app · REST API
6.4 kW, JSON on your subnet
Published
Home Assistant
37.8 °F, native entity
Published
Alert · growbud.app
4 starts / hr, short-cycling
Sent
01 · OT in
Connect the equipment floor
LoRaWAN and Bluetooth sensors across the site. Modbus RTU and BACnet MS/TP on RS-485, and CANopen, in the equipment room. Valves, relays, leak and flow inputs on the Controller.
02 · Build
Any reading can drive any output
Rules, schedules, and interlocks run on the Controller and the Edge Server, so a valve still closes when the internet is down. If a Modbus or CANopen device is missing, we usually add its profile in days.
03 · IT out
Hand it to the systems you run
BACnet/IP and REST on your own subnet, a Home Assistant integration, and a documented cloud API. Isolated VLANs and air-gapped sites are supported. No vendor lock-in.
GreenhousesVertical farmsDrying and curing roomsOfficesMulti-tenant buildingsWalk-in coolersRestaurantsCold storageWarehousesLight industrial
What gets in the way
Get a reading from every zone, and act on it.
- 01
Run on timers
Irrigation, vents, and lights operate on a clock. A timer is indifferent to conditions. It fires the same on a hot afternoon as on a cool morning.
- 02
Too few sensors
One sensor for a room, or none, does not show a clear picture. Wet corners, dry benches, and a hot aisle stay hidden.
- 03
Wired and siloed
Operational technology and IT systems are often disjointed.
- 04
Fails offline
Cloud-only control stops when the internet stops. That is where you need automation most.
Fig. 1 · Growbud app · Layout, 3D
Growbud puts a wireless probe in each zone. It operates valves, vents, and lights on the reading. It continues to operate when the internet stops. You do not need an electrician or an integrator.
- Up to 47%
- more yield in CEA rooms
- 0
- internet required for control
- 10 yr
- battery life on the Climate Sensor
- 128
- Modbus devices on one Controller
Where Growbud works
Irrigation, food, and buildings.
Mix and match sensors and controls for your application: a greenhouse, a curing room, or a mechanical room. Start with the zone that costs you the most. Add zones as you go. Tell us what you want to connect.
Remote water, weather, and site-condition readings: see environmental monitoring.
Start here
Published prices, no quote required.
Dro Sensor
$220
Water and salinity at the root, in soil and coco. One sensor turns the free app into a survey tool.
In stock, ships within 2 business days
Climate Sensor
$100
Temp + RH + VPD for drying rooms, cask rooms, CEA, and greenhouses. 10-year battery.
Tested and provisioned · ships in 2 weeks
- Free US and Canada shipping on orders of $200 or more
- 90-day returns, no questions asked
- 1-year limited warranty
- Data export over Modbus, BACnet, and REST
- Shipping and returns
- Every price is published
- Sensors, controllers, and gateways are listed with their prices on this site. No quote form, no dealer, no discovery call before you can work out whether it pencils out for your operation.
- Your data is not the product
- Readings live on your site and speak Modbus RTU, native BACnet, CANopen, and a full REST API, so your history exports whenever you want in formats your other tools already read. Edge runs the loop locally and keeps running with the internet unplugged. We sell you equipment, not access to your own numbers.
- Assembled in the USA
- Dro, Vero, and the Controller are assembled in the USA. Almost all equipment is made overseas. The people who assemble your hardware are the people who answer your support email.
Integrations
Works with the systems you already run.
Growbud does not ask you to replace your BMS, your network, or your dashboards. Every reading and every output is available on the IT side in the form those systems expect.
- BMS · BACnet and Modbus
- The Controller drops into an existing system as a BACnet MS/TP or Modbus device. The Edge Server serves BACnet/IP on your subnet.
- Home Assistant
- Valves, switches, fans, and levels arrive as native entities. No Growbud account, no cloud.
- REST API
- A documented API, in the cloud or served locally by the Edge Server. Pull readings into your own apps and data tools.
- Your own LoRaWAN
- Join the sensors to the network server you already run, or use a Growbud gateway.
Start here
Start with a kit. Add to it as the business grows.
Every kit uses the same parts as a full site. Add sensors, meters, and Controller outputs later without replacing anything.
Software
One platform from the sensor to the dashboard.
A free app for each Growbud hardware owner: monitoring, automation, and BACnet. It monitors the site while you are away and tells you early when a reading drifts. Growbud AI adds forecasts and a live 3D twin of each zone, and it operates on site.
Remote environmental monitoring · Free app
growbud.app
Start with a sensor and the app for local readings. Add a connected gateway for continuous remote monitoring, history, and alerts from your phone or browser. Add a Controller for local automation. Free for all Growbud hardware owners.
Run the hardware from Home Assistant, join the sensors to your own LoRaWAN network, and pull Growbud data into third-party applications through a documented REST API. No vendor lock-in.
Download the Growbud App
Available on mobile & web
Mobile
Desktop apps for Windows & macOS coming soon
Premium platform
In R&D · Q2 2027growbud.ai
Growbud AI adds forecasts and a live 3D twin of each zone on top of the free app. Readings, equipment actions, and scheduled photos go on one timeline, in a spatial model you can examine on screen or in AR/VR.
It operates on site, not in the cloud. Your readings, actions, and photos stay in your building. One subscription per site, for greenhouses, curing and cold rooms, and commercial buildings.
In R&D, with external pilots running now and a launch planned for Q2 2027. Your data is not used to train AI models unless you explicitly agree.
Installers and resellers
Install or resell Growbud.
Do you install irrigation, HVAC, or building controls? Do you supply the people who do? We sell through resellers and distributors at published prices. Tell us what you install and where.
Stay updated
New devices, integrations, and guides, as they ship.
An occasional note from Growbud on what we're building and what we're learning in the field. No more than a few a year, and easy to leave.