How Students Built a Solar-Powered Irrigation System in 3 Weeks

When three students from Institut Barcelona walked into our FabLab with an idea to help local community gardens, we knew something special was about to happen.

The Challenge

Many urban gardens in Barcelona struggle with consistent watering, especially during summer. The students wanted to create an affordable, solar-powered automatic irrigation system.

The Process

Over three weeks, they:

• Designed the water distribution system in CAD
• 3D printed custom nozzles and connectors
• Programmed an Arduino to control water flow based on soil moisture
• Built a solar panel array to power the system
• Laser-cut a protective housing

The Result

Their prototype is now being tested in two community gardens. Early results show 40% water savings compared to manual watering, and the gardens report healthier plants due to consistent moisture levels.

What They Learned

"We learned more in these three weeks than in a whole semester of regular classes," said Anna, one of the students. "And we actually helped solve a real problem in our community."

This is the power of FabLab education: students don't just learn skills—they use them to make a difference.