SPRIGS Team (leﬅ to right): Andrew Ellio, Andrew Almquist, Peter Sternkopf, Jason Havron. Special thanks to our advisor Steven Fredee. SYSTEM SPECIFICATIONS System can be set up in under 20 minutes and requires no maintenance. Ulizes a self-sustainable solar power supply and makes use of stored rainwater. Capable of charging to full capacity from one day of sunlight. Uses several sensors to monitor the environment and determine when to acvate the pump. Features an LCD display to convey informaon about the status and performance of the system. POWER AND PUMP Windy Naon™ 12V 30W solar panel and charge controller to charge a 12V 8Ah baery. Given 4.5 sun hours and 80% efficiency, the solar panel will charge about 9Ah in a day. Pump current draw is 1.3A and system idle current draw is 200mA. For a maximum 10 minutes of pump run me each day the system draws about 5Ah in one day. Wisconsin has the minimal amount of sun hours per day across the United States, thus the system will operate well in other locaons. FUTURE DEVELOPMENTS A sleep funcon would be ulized to reduce idle current draw. The LCD would acvate upon a user input, and the system would only read the sensors by a user-determined me delay. A flow switch available for installaon on the storage container would allow the system to differenate the amount of rainwater collected from the amount of water added by the user. The system would be compable with a range of storage containers, such as rain barrels. Custom thresholds could be set by the user. Solar Array Solar Charge Controller Power MOSFET ARDUINO MEGA 2560 CPU Battery Cells Moisture Sensor(s) Ambient Temperature Sensor Water Level Sensor Pump Water Tank Spray Nozzle Water to Plants LCD Display Internal CLK CLK H2O H2O Data V(moisture) 5V 5V V(temp) 5V V(water) Pump Control POWER POWER POWER ADC Pushbuttons Cycle Display System Reset POWER POWER SENSORS AND CONTROLS E-Tape™ water level sensor monitors the available water in the storage container. Moisture sensors monitor the soil’s water content. A MOSFET is used to acvate the pump. A thermistor measures the temperature within the system. This prevents the system from operang in freezing condions and from overheang. An Arduino™ MEGA 2560 was used as the CPU and brains of the control system. CURRENT FEATURES Reset buon to clear system of faults and reset pump cycle counter. Structured pump hosing to prevent crimping and protect from physical and environmental damage. Waterproof cabling and connecons. Adjustable and interchangeable spray nozzle with a 3 to 5 foot radius and various spray paerns. Pump cycle counter to indicate to the user the operaon of the system since the last reset. Waterproof enclosure tested with simulated rainfall 15 degrees from the vercal. PROBLEM STATEMENT Solar Powered Rainwater Irrigation and Gardening System Current residenal water irrigaon systems do not ulize natural resources, such as rainwater or sunlight, to create a self-sustaining system or use sensors to react to the environment intelligently. There is not a readily available irrigaon system that combines intelligence with self-sustenance. S.P.R.I.G.S. combines these two ideas into one easy-to-use system.

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SPRIGS Team (left to right): Andrew Elliott, Andrew Almquist,

Peter Sternkopf, Jason Havron.

Special thanks to our advisor Steven Fredette.

SYSTEM SPECIFICATIONS System can be set up in under 20 minutes and

requires no maintenance.

Utilizes a self-sustainable solar power supply and makes use of stored rainwater.

Capable of charging to full capacity from one day of sunlight.

Uses several sensors to monitor the environment and determine when to activate the pump.

Features an LCD display to convey information about the status and performance of the system.

POWER AND PUMP Windy Nation™ 12V 30W solar panel and charge

controller to charge a 12V 8Ah battery.

Given 4.5 sun hours and 80% efficiency, the solar panel will charge about 9Ah in a day.

Pump current draw is 1.3A and system idle current draw is 200mA.

For a maximum 10 minutes of pump run time each day the system draws about 5Ah in one day.

Wisconsin has the minimal amount of sun hours per day across the United States, thus the system will operate well in other locations.

FUTURE DEVELOPMENTS A sleep function would be utilized to reduce idle

current draw. The LCD would activate upon a user input, and the system would only read the sensors by a user-determined time delay.

A flow switch available for installation on the storage container would allow the system to differentiate the amount of rainwater collected from the amount of water added by the user.

The system would be compatible with a range of storage containers, such as rain barrels.

Custom thresholds could be set by the user.

Solar Array

Solar Charge

ControllerPower MOSFET

ARDUINO MEGA 2560

CPU

Battery Cells

Moisture

Sensor(s)

Ambient

Temperature