DIY Automatic Plant Watering System: No Microcontroller Needed

Premium Female/Female Jumper Wires, 40 x 12" (300mm)

Resistor Kit

Soldering kit

Breadboard - 400 contacts

Box 500 electrolytic capacitors

Jumper wires (Male to Female)

Water pump DC 3-5V

tinkercad circuits

soil moisture sensor

BC547 transistor

Single Turn Potentiometer- 100k ohms

male to male jumper wires

<html><body><p><em>N</em>owadays, many people are embracing green solutions for healthier lives. Growing plants helps maintain nature's balance, but watering them consistently is a challenge. Despite our best intentions, we often forget. To solve this, we've created a simple, automatic plant watering system—no Arduino required. Using minimal components, it's easy for anyone to build, perfect for keeping your potted plants hydrated while you're on vacation. </p><p> </p><p>Let's dive in and see how it's done! </p><h3>Circuit Diagram of Automatic Plant Watering System:</h3><p>The circuit diagram for our Automatic Plant Watering System is simple and beginner-friendly. The key component here is the <a href="https://circuitdigest.com/microcontroller-projects/interfacing-soil-moisture-sensor-with-arduino-uno">soil moisture sensor </a>, which detects soil water levels. You can learn more about it in our detailed article. While adding a single transistor might seem sufficient, we've used two to ensure the motor doesn't turn on too frequently, providing proper watering. </p><p> </p><figure><img src="https://circuitdigest.com/sites/default/files/inlineimages/u5/circuit-diagram-of-plant-watering.jpg"/><figcaption>Circuit Diagram of Automatic Plant Watering System</figcaption></figure><h3>Assembling the Components As per the Circuit Diagram:</h3><p>For simplicity, we prefer using a breadboard. For more stability, you can solder the components to a Dotted PCB and place it in a small enclosure. Check the assembled image below. We've extended the pump wire. Ensure the motor's waterproofing is intact; if not, seal it with gum or hot glue. </p><p> </p><figure><img src="https://circuitdigest.com/sites/default/files/inlineimages/u5/components-of-plant-watering.jpg"/><figcaption>undefined</figcaption></figure><p>and below you can see the Full assembled image. </p><p> </p><figure><img src="https://circuitdigest.com/sites/default/files/inlineimages/u5/plant-watering-setup.jpg"/><figcaption>Fully Assembled</figcaption></figure><h3>Working Demonstration:</h3><p>This project detects soil dryness using a moisture sensor, which then activates the mini water pump. Water flows from the storage to the flowerpot and stops after a delay set by a potentiometer once the soil is wet. The video below demonstrates this automatic watering system in action. </p><figure><iframe src="https://youtu.be/882MSzAsLaA"></iframe></figure><h3>Conclusion:</h3><p>Finally the project is completed, For Detailed information about the Project, Visit our article Explaining about the <a href="https://circuitdigest.com/electronic-circuits/automatic-plant-watering-system-without-arduino">Simple Automatic Plant Watering System without a Microcontroller </a>. </p><p> </p></body></html>

Circuit Diagram

Coding