Design and Development of a Low-Cost Scalable GSM-IoT Smart Pet Feeder with a Remote Mobile Application

TL;DR

This paper introduces a low-cost, scalable GSM-IoT pet feeder that enables remote control and monitoring via cellular communication, combining hardware and a mobile app for reliable, autonomous pet feeding in resource-limited households.

Contribution

It presents a novel, affordable GSM-IoT pet feeder design with a mobile app, demonstrating high success rates and autonomous operation, advancing accessible pet care technology.

Findings

98% SMS command success rate

$\pm 2.67$ ext{% variance in portion dispensing

Reliable autonomous operation

Abstract

Pet ownership is increasingly common in modern households, yet maintaining a consistent feeding schedule remains challenging for the owners particularly those who live in cities and have busy lifestyles. This paper presents the design, development, and validation of a low-cost, scalable GSM-IoT smart pet feeder that enables remote monitoring and control through cellular communication. The device combines with an Arduino microcontroller, a SIM800L GSM module for communication, an ultrasonic sensor for real-time food-level assessment, and a servo mechanism for accurate portion dispensing. A dedicated mobile application was developed using MIT App Inventor which allows owners to send feeding commands and receive real-time status updates. Experimental results demonstrate a 98\% SMS command success rate, consistent portion dispensing with $\pm 2.67$\% variance, and reliable autonomous operation. Its modular, energy-efficient design makes it easy to use in a wide range of households, including those with limited resources. This work pushes forward the field of accessible pet care technology by providing a practical, scalable, and completely internet-independent solution for personalized pet feeding. In doing so, it sets a new benchmark for low-cost, GSM-powered automation in smart pet products.