Tag: Embedded Systems
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What is MQTTS? Secure MQTT Communication for IoT Devices
In IoT systems, devices often communicate using MQTT (Message Queuing Telemetry Transport)—a lightweight and efficient publish/subscribe protocol. However, standard MQTT communication is unencrypted, which makes it vulnerable to eavesdropping and man-in-the-middle attacks. To solve this, we use MQTTS, which is simply MQTT over SSL/TLS encryption. In this article, we’ll explore what MQTTS is, why it’s…
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Secure Software Development for ESP32: Best Practices for IoT Projects
The ESP32 is a powerful and affordable Wi-Fi + Bluetooth microcontroller widely used in IoT projects. While it enables rapid development, its connectivity features also make it a target for potential security threats. Writing secure software for ESP32 is essential to protect devices, data, and networks from unauthorized access. In this guide, we’ll cover the…
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What is CAN Bus? A Beginner’s Guide to Controller Area Network
CAN Bus (Controller Area Network) is a robust communication protocol widely used in automotive, industrial, and embedded systems. Designed for reliable, real-time communication between microcontrollers and devices, CAN Bus eliminates the need for complex wiring and supports multi-master communication. This article provides a practical overview of how CAN Bus works, where it is used, and…
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RS485 Communication in IoT Projects Using the MAX485 Chip
In modern IoT applications, reliable long-distance and noise-resistant communication is crucial—especially in industrial environments. That’s where RS485 communication and the MAX485 chip come into play. RS485 is widely used in IoT devices for its robustness, and MAX485 makes it easier to implement. This article explains what RS485 is, why it’s used in IoT systems, and…