AI Robotics · Precision Lawn Care
Chemical Free Weed Control for Your Lawn.
GreenBeam is an AI-powered robot that removes weeds from residential lawns and yards using a precision laser instead of chemicals. Designed, built, and coded by founder Aryash Shyam, it gives homeowners a safer, smarter way to keep a healthy lawn without spraying herbicides around their families, pets, and gardens.
2025 Pennsylvania State Merit Winner · 3M Young Scientist Challenge
The Problem With Lawn Herbicides
Every year, homeowners spread millions of pounds of chemical weed killers across their lawns. Those herbicides don't simply disappear. They linger in the soil, wash into storm drains and waterways, and leave residues right where kids play and pets roam. For a handful of dandelions or crabgrass, that is a heavy price. There had to be a safer way to keep a clean, healthy lawn.
Ecosystem Harm
Herbicides kill off non-target plants and beneficial insects, reducing biodiversity and disrupting food webs that farmers and communities depend on.
Soil & Water Contamination
Chemical runoff leaches into groundwater, rivers, and drinking-water supplies, leaving residue that persists for months or years after application.
Health Risks
Prolonged exposure to common herbicides has been linked to increased risks of certain cancers, hormone disruption, and other serious health conditions in farmworkers and surrounding communities.
GreenBeam was built to answer one question: what if you could remove weeds precisely — without the chemical cost?
How GreenBeam Works
GreenBeam moves across your lawn on its own, scanning the ground with an onboard camera. A computer vision model, trained to recognize weeds by their shape, color, and leaf patterns, tells the difference between healthy grass and common broadleaf and grass weeds. When it spots a weed, GreenBeam aims a precision laser and removes it on the spot. No herbicides, no runoff, no harm to your soil. Just light, precisely aimed.
The Old Way
Spray Everything, Hope for the Best
Traditional herbicide application saturates entire lawns with chemical solutions. The spray cannot distinguish between a target weed and a beneficial plant, insect habitat, or the soil itself. Runoff carries those chemicals into waterways, and residue persists long after harvest.
Result: ecosystem damage, soil degradation, water contamination, and growing herbicide resistance.
The GreenBeam Way
See the Weed. Target It. Eliminate It.
GreenBeam's onboard computer vision system identifies individual weeds in real time. A precision laser delivers a focused pulse directly to each target — and only the target. No chemicals, no runoff, no collateral damage to surrounding plants, soil, or water.
Result: precise, chemical-free weed elimination with zero environmental side effects.
Computer Vision
See — an onboard camera scans your lawn in real time.
Precision Laser
A focused laser pulse eliminates each weed individually — no spray radius, no drift.
Zero Chemicals
No herbicides. No runoff. No soil residue. Lawns, water, and ecosystems stay protected.
Built From Scratch
Designed and Built by Aryash Shyam
GreenBeam is not a concept — it is a working prototype engineered by its founder. Aryash Shyam designed and assembled the hardware, wrote the computer vision software, and integrated all systems from the ground up.
1. Define the Problem
Researched the agricultural and environmental impact of chemical herbicides to confirm the need for a precision alternative.
2. Design the Hardware
Selected and assembled robotics components — motors, chassis, sensors, and laser module — into a working mechanical system.
3. Write the Software
Built the computer vision pipeline in Python, training a model to identify target weeds and command the laser with precision.
4. Test and Iterate
Ran repeated real-world tests, refining detection accuracy and laser targeting until the system performed reliably.
The entire system — hardware, software, and control logic — was designed, built, and tested by Aryash Shyam as a solo founder project.
Recognition
GreenBeam was named a Pennsylvania State Merit Winner in the 2025 3M Young Scientist Challenge, and has been featured by The Morning Call, Lehigh Valley Public Media, and Yahoo News.
2025 Pennsylvania State Merit Winner
3M Young Scientist Challenge
The 3M Young Scientist Challenge is a national competition inviting middle- and high-school students to propose innovative solutions to everyday problems using STEM. GreenBeam was selected as the Pennsylvania State Merit Winner in 2025.
Additional honors held by founder Aryash Shyam include the 2026 Genes in Space Junior Scientist Award, 2026 PETE&C Technology Student of the Year, first place in the NASA 2026 AIAA Essay Contest, and the Lehigh Valley Science Fair.
GreenBeam Is Coming Soon
GreenBeam is a working prototype, and it's launching on Kickstarter soon. Want to be first to know when the campaign goes live? Reach out on the Connect page and follow along.
For press inquiries, research collaboration, or media requests, use the Connect page.
Frequently Asked Questions
Have questions about GreenBeam's technology, safety, or availability? Find answers below.
Is the laser in GreenBeam safe?
GreenBeam's laser is a low-power precision instrument calibrated to eliminate weed tissue at close range. The system includes proximity sensors and automated shutoff mechanisms designed to prevent unintended exposure. The laser operates only when the computer vision system has confirmed a valid weed target at the correct distance.
Is GreenBeam available commercially?
GreenBeam is a working prototype in active development and launching on Kickstarter soon. Back the campaign to help bring chemical-free, precision weed control to home lawns and yards. Follow along for the launch date.
What kinds of settings is GreenBeam designed for?
GreenBeam is designed for residential yards and lawns, giving homeowners precise, chemical-free weed control that's safer around families, pets, and gardens. The current prototype targets the common broadleaf and grass weeds found in typical home lawns.
How does the computer vision system tell weeds from grass?
An onboard camera feeds live video to a computer vision model trained to recognize weeds by their shape, color, and leaf patterns. It distinguishes common broadleaf and grass weeds from healthy lawn grass, then targets the laser only at the weeds.
How can I learn more about or get involved with GreenBeam?
GreenBeam.us is coming soon. In the meantime, use the Connect page to reach Aryash directly with questions, collaboration ideas, or media inquiries, and to be notified when the Kickstarter launches