Y201-G Mini DTU
4G cellular DTU with RS485/RS232. In IrriSmart, it is the farm-wide cloud bridge for sensor upload and command delivery.
View specification10+
farms deployed
1000+
acres covered
35%
water savings
Your Irrigation Calendar Is Guessing. The Soil Knows.
The common waste is not always visible from the field road: one zone floods while another zone still runs dry.
Manual valve rounds
A large farm can lose hours each cycle driving between valves, estimating run time, then closing every point by hand.
Scattered pumps and gates
When valves are spread across the field, missed operations become normal: the far gate stays open, the near one stays closed.
No soil data
Irrigation decisions become visual guesses, which leads to wasted water in wet zones and crop stress in dry zones.
Hard to react at night
Storms, hot days, and late changes are difficult to handle when the operator has to be physically in the field.
IrriSmart: Let the Soil Decide When to Water
One farm-wide Y201-G 4G DTU uploads RS485 soil moisture data and delivers commands to Y403-11-L LoRa I/O nodes.
Control chain: soil moisture sensor via RS485 to Y201-G -> cloud or AI decision -> Y201-G command delivery -> Y403-11-L I/O control -> solenoid valve.
Field design: Y403-11-L is a pure 1DI/1DO LoRa I/O sync module. Y201-G is the 4G cellular RS485/RS232 DTU cloud bridge.
RS485 sensing
4G cloud bridge
LoRa I/O control
One DTU Bridges the Farm. I/O Nodes Execute in Each Zone.
The topology keeps internet connectivity centralized in the Y201-G while each Y403-11-L handles local valve actuation over LoRa.
Five Control Modes for Real Field Work
Scheduled plans, sensor thresholds, remote grouping, alarms, and solar power work as one operating loop.
Scheduled irrigation
Run fixed plans such as Monday, Wednesday, and Friday at 06:00 for 40 minutes.
Soil moisture trigger
Start when moisture drops below the threshold and stop when the target is reached.
Remote group control
Start or stop the whole farm, or selected zones, from the mobile app.
Fault alarm
Abnormal flow can trigger valve closure and an app alert for burst pipes or blockage.
Solar off-grid power
Low-power nodes can run from solar panel and battery packs where grid power is unavailable.
Core Advantages
IrriSmart is built for wide farms where wiring is expensive, labor is scarce, and irrigation timing has to follow the soil.
One DTU, one farm
A single Y201-G acts as the cloud bridge, so Y403-11-L nodes do not need individual internet connections.
Soil data, not guesswork
Scheduled plans can be combined with moisture thresholds so irrigation starts and stops from measured soil status.
Phone control for every valve
Group control lets one operator manage scattered pumps and valves without driving through the field.
Wireless and off-grid
LoRa I/O nodes reduce field wiring, while low-power design supports solar-powered sites.
Different irrigation scenes share the same control idea: measure the field, decide centrally, actuate locally.
Lawn and green space
Scheduled irrigation replaces manual water trucks across large turf areas.
Vegetable farm
High-frequency, low-volume watering with narrow humidity thresholds.
Orchard
Deep soil moisture monitoring connected to drip or micro-spray irrigation.
Greenhouse
Moisture-triggered irrigation with logs for repeatable production records.
Landscape and garden
Remote automated irrigation for maintained landscapes without manual rounds.
Verified YenGear Building Blocks
The solution uses product roles grounded in the YenGear product library.
Y403-11-L Wireless I/O Sync Module
Mesh network 1DI/1DO LoRa I/O node. In IrriSmart, its DO channel actuates the zone valve while Y201-G handles cloud connectivity.
View specificationHow a High-Standard Farmland Project Cut Water Use by 35%
A county-level demonstration zone moved from hand-operated irrigation to zone-level wireless control.
Deployment: Y403-11-L I/O nodes controlled solenoid valves in each irrigation zone. Soil moisture sensors connected by RS485 to a Y201-G 4G DTU, which served as the farm-wide cloud bridge. Off-grid areas used solar power.
35%water savings
80%labor reduction
Full farmphone control
Betteruniformity
“The soil moisture threshold gave the team a measurable reason to irrigate, and group control removed most valve rounds.”
Frequently Asked Questions
Practical answers for farm owners and agricultural project teams.
What is the coverage range of the Y201-G DTU? Can it cover an entire farm?
In open farmland, a single Y201-G 4G DTU can cover approximately 2-3 km radius and manage dozens of Y403-11-L I/O nodes. Y403-11-L devices synchronize I/O status over LoRa, and relay extension can be used when needed.
How deep should soil moisture sensors be installed?
Installation depth depends on crop root depth: typically 20-40 cm for field crops and up to 60 cm for deep-root orchard monitoring.
How are off-grid field sites powered?
The system uses low-power control, with solenoid valves drawing current mainly at switching. Solar panel and battery packs can keep field nodes operating where grid power is unavailable.
Is the Y403-11-L a pure I/O device?
Yes. Y403-11-L is a LoRa wireless I/O sync module with 1DI/1DO. It does not provide the internet bridge; the Y201-G handles 4G cloud connectivity.
Can the system connect to existing pumps and solenoid valves?
Yes. The DO relay/dry-contact output can drive compatible solenoid valves or pump contactors, allowing existing irrigation pipework and customer-supplied valves to remain in use.
How long does installation take?
A typical 500-acre farm with 20-30 irrigation zones can usually be mounted, wired, buried, and commissioned by a small team in several days, depending on pipework and site conditions.
Stop Guessing. Start Measuring.
Bring soil moisture, remote valve control, and solar-ready field nodes into one irrigation control loop.