Irrigation Kit 1CH

The Layad Circuits One Channel Irrigator is a complete, low-cost solution for
projects requiring automated moisture-based watering and irrigation. It has
all the parts required to setup an automated irrigation system in minutes.
To cater to different applications, the Layad Circuits One Channel Irrigator
comes in two main variants – a motorized valve-based kit and a pump-based
kit. The valve-based kit is suitable for controlling liquid flow in a system
while the pump-based kit is more suitable for systems requiring movement
of water usually from a lower to a higher elevation. Moreover, the Layad
Circuits One Channel Irrigator is equipped with a corrosion-resistant
capacitive soil moisture sensor and a knob for adjusting the moisture level
threshold value at which the valve or pump is activated and deactivated.

The Layad Circuits One Channel Irrigator operates by acquiringmoisturelevel data from the capacitive soil moisture sensor and usingthisdatatoactivate or deactivate the motorized valve or pump. The deviceperformsautomatic debouncing of and hysteresis on the soil moisturedatatoproperly operate the valve or pump.
The Layad Circuits One Channel Irrigator also makes sure that properdelaysand rest periods for the valve or pump are observed duringoperationtoprevent damage. The built-in potentiometer allows the user toadjustthemoisture level threshold value at which the valve or pumpis activatedanddeactivated. The on-board heartbeat LED indicates that thedevice is functional and operating. All of these processes are doneautomatically by the device, without the user having to write a single line of code.

KEY FEATURES
 Automatic Moisture-based Irrigation
 Low-cost and Stand-alone Operation (No Programming Required)
 Built-in Corrosion-resistant Capacitive Soil Moisture Sensor
 Automatic Handling of Signal Debouncing and Hysteresis
 Threshold Adjustment Potentiometer
 Heartbeat Indicator LED
 Compact PCB dimensions: 50x50x15mm
APPLICATIONS
 Agriculture
 Greenhouse Irrigation
 Indoor and Urban Gardening
 Landscape Gardening
 Terrariums
 For Research and Laboratories

OPTION FOR MODIFICATION AND UPGRADE
In some applications, a more powerful pump might be required. For these
cases, it is possible to replace the existing submersible pump of the pump- based kit with a larger pump. However, the user must ensure that the
maximum current draw of the new pump is limited to 2 amperes only. Also, the user must replace the existing DC power supply with an adequate DC
power supply capable of supplying enough power to the new pump. Input
voltage to the irrigator controller board should be between 6 V and 12 V
only. See the section “TECHNICAL SPECIFICATIONS” for more information.

TRIGGER THRESHOLD ADJUSTMENT
When the threshold adjustment knob is at the LOW position, the device will
irrigate ONLY when the soil moisture level being detected by the soil
moisture sensor is LOW. When the threshold adjustment knob is at the
HIGH position, the device will irrigate even if the soil moisture level being
detected by the soil moisture sensor is HIGH. Set the threshold knob to
anywhere in the middle to irrigate when the optimum level of soil moisture
level is reached.

SIGNAL DEBOUNCING AND HYSTERESIS
The One Channel Irrigator performs automatic debouncing of andhysteresison the soil moisture data to properly operate the valve or pump. Thedevicedoes this by constantly monitoring the soil moisture and makingsurethatthe readings are stable for a certain period of time beforeoperatingthevalve or pump.