IoT & Embedded System May 14, 2025

Smart Automated Locker Access and Payment Control System (v3 Firmware)

Contributed to firmware development for a next-generation smart locker system designed for secure automated storage access using embedded authentication, GSM connectivity, and payment-triggered unlocking mechanisms. Worked on version 3 firmware improvements involving STM32-based control logic, industrial locking systems, and remote communication integration for real-world deployment environments.

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Project Type
IoT & Embedded System
Completed
May 2025
Views
3
Read Time
1 min

Contributed to the firmware development of a smart automated locker system (v3) designed for secure, payment-enabled storage access. The system integrates embedded control logic, GSM-based communication, and industrial locking mechanisms to enable automated locker operations in shared and commercial environments.

STM32
Embedded Control Unit
v3 Firmware
System Upgrade Cycle
GSM
Remote Communication
Payment Enabled
Access Authorization System

System Overview

Smart Locker Control Architecture

The system is built around an embedded STM32 microcontroller responsible for managing locker states, authentication logic, and secure locking/unlocking operations. It enables controlled access to storage compartments based on validated user sessions.

Payment-Based Access Control

Integrated a payment-triggered access system where locker availability is tied to successful transaction validation, ensuring secure and automated usage flow for shared environments.

GSM Remote Communication Layer

Implemented GSM module communication for remote system interaction, enabling status updates, authentication verification, and remote monitoring capabilities in environments without stable internet connectivity.

Engineering Highlights

STM32 Firmware Development (v3)

Contributed to embedded firmware improvements for version 3, focusing on stability, optimized control logic, and reliable hardware state management for industrial locker systems.

Industrial Lock Mechanism Integration

Worked with custom industrial-grade locking hardware to ensure secure physical access control, integrating electronic actuation with embedded decision logic.

Secure Embedded State Control

Implemented robust firmware logic to manage locker states including locked, unlocked, pending payment, and session timeout states with high reliability.

System Reliability & Field Readiness

Participated in firmware refinement and validation cycles to improve system stability, responsiveness, and operational readiness for real-world deployment scenarios.

Outcome

This project highlights expertise in embedded firmware engineering, STM32-based system design, GSM communication systems, industrial automation and secure access control systems. The work demonstrates the ability to contribute to production-level embedded firmware for commercial smart infrastructure systems.

Technologies & Tags

C++ Embedded C++ IoT

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Project Details

Category IoT & Embedded System
Status Completed
Published May 14, 2025
Read Time 1 min
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