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Smart greenhouse

Smart Greenhouse Monitoring and Control System

Sensor readings and equipment control for greenhouse growers

Monitor temperature, humidity and light, and control fans, pumps, shade curtains and grow lights. Sensors, switching circuits and the gateway are selected for the crop, equipment and site network.

Request a Greenhouse Quote View Cabinet Components
RS485 environmental sensorsWi-Fi, 4G or EthernetWeb, app and cabinet panel

Orchid nursery deployment

One cabinet reads temperature, humidity and light, and switches the nursery’s ventilation fan. Staff use the touch panel or phone app to operate the fan outside its daily schedule.

Crop
Orchids
Sensors
Temperature, humidity, light
Outputs
Fan + one spare
Gateway
Y201-W · Wi-Fi
Daily schedule
08:00–13:00
Access
Panel · app · web
Control cabinet door with a touch panel showing humidity, temperature and light, plus run lights and selector switches
Two people inspecting the wiring inside an open greenhouse control cabinet

Inside the cabinet

Sensors and relays share an RS485 line. A serial gateway connects the cabinet to YenGear IoT Cloud.

  1. Sensors on RS485

    RS485 Modbus sensors measure temperature, humidity and light. CO₂ and soil moisture require additional sensors.

  2. Y301-880 RS485 Modbus I/O Module with 8 DI and 8 Relays

    Relay module

    Y301-880 provides eight relay outputs and eight isolated digital inputs, with up to 16 local DI-to-output rules. External sensor readings reach the cloud through the gateway.

    Y301-880

  3. Y201-W Single-Port Dual-Band Wi-Fi Serial Gateway

    Serial gateway

    Y201-W connects over the nursery’s Wi-Fi. Use Y201-G for 4G or Y201-R for Ethernet at other sites.

    Y201-W Y201-G Y201-R

Cabinet touch panel showing humidity, temperature, light and two switch outputs

YenGear IoT Cloud

View readings, issue switch commands and manage cloud schedules, alerts and history on the web or phone app. The cabinet touch panel displays measurements and equipment controls on site.

Explore IoT Cloud

Remote monitoring and control in the app

Check live readings, operate connected equipment remotely and manage schedules. The nursery uses the Chinese-language app shown here.

App screen with live humidity, temperature and light tiles and the fan switch
Live readings and remote switching
App screen showing the greenhouse humidity history chart
Humidity history
App screen for the fan with its switch, operation log and daily schedule
Remote switch, operation log and schedules

Sensors and equipment by crop

Sensor selection follows the crop. Equipment voltage, motor power, control signals and circuit count determine the cabinet configuration.

Flowering pot plants on benches in a glass greenhouse
Flower greenhouse.
Greenhouse control cabinet with run lights and selector switches inside a film greenhouse
Control cabinet in a film greenhouse.
A data logger mounted on a greenhouse frame under the shade net
Data logger under the shade net.
CropTypical measurementsEquipment to control
Tomatoes, cucumbers, peppersTemperature, humidity, CO₂, soil moistureVents, fans, drip irrigation
Roses and liliesLight, temperature, humidityShade curtains, grow lights, fans
Orchids and pot plantsHumidity, temperature, lightFans, misting, shade curtains
SeedlingsTemperature, humidity, lightMisting, heating, grow lights

FAQ

Existing equipment, site networks, offline operation and preparing a greenhouse quote.

Can I use existing greenhouse sensors and equipment?

Yes, where their interfaces match the cabinet. RS485 sensors need a protocol, register-map and power check. Fan, pump and curtain circuits must match the switching and protection components. Share sensor models and equipment voltage and power.

What if the greenhouse has no Wi-Fi?

Use Y201-G where 4G coverage is available, or Y201-R where an Ethernet cable reaches the cabinet. Gateway choice follows the network at the cabinet location.

What happens if the internet connection fails?

The app stops receiving new readings, and cloud-timed actions cannot reach the cabinet. Local control uses the rules already configured on Y301-880 or the cabinet’s manual switches; it requires local power.

Does an on-screen switch confirm that the fan is running?

No. An output state alone does not confirm fan or pump operation. Actual running status requires a run contact, current measurement or another suitable feedback signal wired into the monitoring system.

Can growers change the fan schedule themselves?

Yes. Users with the appropriate project permissions select the output, start time and run duration in the app. These cloud schedules require the cabinet to be online.

Can one account manage several greenhouses?

Yes. Organize greenhouses as projects with their own devices and members. Give staff access to the projects they operate.

Can I export readings for growing records?

Yes. Historical readings can be exported for configured data points and a selected date range. Available fields, retention and export format follow the project setup.

What affects the quote and installation time?

Greenhouse count, sensors, control circuits, equipment ratings, existing wiring and network access determine the hardware and installation work. Send the details through the greenhouse quote form for a proposed configuration, price and schedule.

Your greenhouse project

Request a Greenhouse Quote

Describe your growing areas, equipment and site network. We’ll recommend a cabinet configuration and prepare a quote.

  • Crops, greenhouse count and approximate size
  • Sensor models or measurements you need
  • Fans, pumps and other equipment: quantity, voltage and power
  • Wi-Fi, Ethernet or 4G coverage near the cabinet

We reply within 1 business day. Share the details you know; equipment models can be added later.