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This project aims to enhance IoT security and software license management by integrating LicenseSpring's API with ESP32 boards, leveraging HTTPS and SSL/TLS for secure data transmission. I developed this as part of my student onboarding experience, it focuses on establishing a robust mechanism for activating and verifying software licenses remotely on ESP32 devices. The core of the project is written in C++, adhering to Arduino's programming structure, and features a user-friendly web interface for easy interaction.
The ESP32 is a versatile, low-power system on a chip (SoC) series with integrated Wi-Fi and dual-mode Bluetooth, making it ideal for smart IoT applications. It's widely used in home automation, wearable electronics, and IoT projects due to its balance between performance and power consumption.
While the ESP32 boasts ample processing power and connectivity options, it operates under constraints typical of microcontroller units (MCUs), such as limited memory and storage capacity. These limitations challenge efficient software design, particularly for applications requiring secure communication and data encryption.
The average ESP32 board features include a dual-core processor, Bluetooth and Wi-Fi capabilities, and various GPIO pins for connecting peripherals. However, its limited RAM and flash memory size pose challenges for running complex applications, especially those requiring secure data storage and encryption algorithms.
This project not only served as a practical introduction to IoT security and license management but also highlighted the importance of overcoming hardware constraints through efficient coding practices. The experience gained from addressing these challenges has been invaluable, offering deep insights into both the potential and limitations of IoT devices like the ESP32.
I found this tutorial helpful: (#232 How to secure our devices using SSL (ESP8266, ESP32, Tutorial)).