Project cover photo
Electronics · INCO 2026

SMART
ADJUSTABLE SPRAYER

INCO Exhibition 2026
5 Developers
HNDE Colombo 15
Overview

About the Project

The Smart Adjustable Sprayer is a mobile agricultural robot designed to efficiently apply fertilizers and pesticides along crop rows. It automatically adjusts its spraying height and flow rate to match varying crop sizes, solving the problem of chemical waste and uneven coverage caused by traditional fixed sprayers

Equipped with an ultrasonic sensor, the system measures the distance to the crop canopy and uses a stepper motor to adjust the nozzle height. Additionally, servo motors control independent spray zones to adjust the flow rate based on crop width, ensuring precise, uniform, and cost-effective spraying

Gallery

Project Photos

Features

What It Does

🔧
Auto-Height Adjustment

Automatically adapts the nozzle height to the crop using an ultrasonic sensor.

🚧
Zone Flow Control

Adjusts the spray volume based on the crop's width using servo motors

⚙️
Motorized Lifting

Smoothly moves the sprayer up and down using a stepper motor and belt

🚿
Dual-Side Spraying

Simultaneously sprays crops on both the left and right sides of the row

The Team

Developers

Developer 1
Name
Developer
COL/EE/2324/F/011
Developer 2
Name
Developer
COL/EE/2324/F/041
Developer 3
Name
Developer
COL/EE/2324/F/050
Developer 4
Name
Developer
COL/EE/2324/F/060
Developer 5
Name
Developer
COL/EE/2324/F/212
Supervisor
Supervisor
Academic Supervisor
Eng.H.D.A.GUNASEKARA
Department of Electrical & Electronics Engineering, HNDE COLOMBO
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