Best of IoT — 2024

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Article
Community Picks·2y
Design a Robust School Bus Tracker System
This post discusses the architecture for a school bus tracker system, focusing on real-time monitoring and parental notifications. Key functional requirements include frequent location updates, real-time map visualization, proximity notifications, and data isolation between schools. Non-functional requirements involve scalability, high availability, reliability, security, and privacy. The post elaborates on various technical aspects such as API design, geohashing for location indexing, and using Redis for real-time updates. It also covers the system’s read/write ratio, proposing DynamoDB, and explores various scalability strategies using AWS managed services.
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Article
This is Learning·2y
7 Open Source Projects You Should Know - Java Edition ✔️
Discover seven notable open-source projects written in Java, spanning various domains from Android testing (Robolectric) to distributed search engines (Elasticsearch and OpenSearch), to IoT platforms (ThingsBoard). Each project includes a brief overview, key features, and starter guides, making them great for both potential use and contribution.
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Article
Lobsters·2y
How I built a fully offline smart home, and why you should too
Learn how to build an offline smart home using Home Assistant and recommended devices. Discover the benefits of an offline smart home setup and how to choose the right brands for your smart home.
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Article
Spacelift·2y
K3s vs K8s: Differences, Use Cases & Alternatives
K3s is a lightweight, production-ready Kubernetes distribution tailored for resource-constrained environments such as IoT, edge computing, and local development. It simplifies deployment through a single binary, uses less memory and CPU, and includes default tools like containerd and Traefik. While K3s is easier to set up and maintain compared to standard Kubernetes (K8s), it may lack some advanced features and security options. Managed cloud services like Amazon EKS and Google GKE offer alternative options for more complex, large-scale environments.
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Article
Hacker News·2y
TOTP tokens on my wrist with the smartest dumb watch.
The Casio F-91W can be upgraded using a new ARM Cortex M0+ powered logic board from Sensor Watch, which replaces its original quartz movement while maintaining the classic LCD display and other components. This board is programmable and supports custom watchfaces and utilities, including TOTP (Time-based One-time Password) generation for 2FA codes. The process involves replacing the board, configuring 2FA secrets, and writing new watchfaces. The upgraded watch offers features like a world clock, moon phase indicator, sunrise/sunset calculator, temperature sensor readout, and more, with months-long battery life and no Bluetooth connectivity.
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Video
Community Picks·2y
How the Internet Works in 9 Minutes
The post explains the fundamental workings of the internet, tracing its evolution from the ARPANET in the 1960s to modern-day technologies like 5G and IoT. Key components such as network edges, access networks, and the network core are discussed in detail. It also delves into packet switching, routing protocols like BGP, and the TCP/IP protocol stack, highlighting how different layers and protocols enable seamless data communication across the internet.
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Article
Software Testing Magazine·2y
Top 10 Software Testing Trends for 2024
The software testing industry is set to grow at 7% CAGR from 2024-2032, driven by advancements in testing methodologies and tools. Challenges such as scarce talent, poor documentation, and time constraints are common. Emerging trends include scriptless test automation, IoT testing, AI and machine learning in testing, cloud-based testing, and shift-left testing. Technologies like blockchain and big data testing are also becoming crucial. Embracing these trends helps improve efficiency, speed up release cycles, and ensure high-quality software delivery.
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Video
Fireship·1y
D-Link says “just buy a new router” after 9.8 critical vulnerability…
D-Link has announced that a critical 9.8 vulnerability affecting its NAS and router devices will not be fixed due to the devices reaching their end-of-life. This exposes users to potential remote code execution and security breaches. The company recommends purchasing new devices instead. The post also highlights the broader industry practice of planned obsolescence and provides an ethical hacking overview for educational purposes.
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Article
Hacker News·2y
Shodan
Discover the Internet beyond websites with Shodan, stay secure, monitor your devices, and gain insights into technology trends.
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10
Article
The New Stack·2y
Golang Pub/Sub: Why It’s Better When Combined With GoFr
Modern systems require reliable, scalable, and real-time communication, often achieved using pub/sub (publish-subscribe) architectures. Golang, with its simplicity and efficiency, combined with the GoFr framework, offers an optimal solution for building these systems. GoFr simplifies pub/sub setups by abstracting boilerplate code, supporting multiple message brokers, providing built-in monitoring and security, and optimizing for IoT with MQTT. This makes it ideal for high-throughput, low-latency communication necessary for IoT and other real-time applications.
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Article
ITNEXT·2y
The streaming bridges — A Kafka, RabbitMQ, MQTT, and CoAP example
This post provides an in-depth overview of various data streaming protocols including Kafka, RabbitMQ, MQTT, and CoAP, detailing their history, implementation, and use cases. The discussion highlights the differences between push and pull mechanisms, particularly in the context of Kafka and RabbitMQ. Detailed scenarios and examples, including IoT applications, are used to illustrate the practicality and utility of these protocols. Additionally, a practical example using Docker, Apache Spark, and various other tools is provided to demonstrate a comprehensive streaming architecture.
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Article
Community Picks·2y
🚀 10+ Projects to Win Hackathons in 2024🏆💻
Hackathons are high-energy coding marathons where a smart, practical, and innovative project idea can set you apart. Here are 10+ winning project ideas for 2024, including a mental health companion app, a smart budgeting app, a real-time learning platform, and a carbon footprint tracker. These projects cover various domains such as healthcare, education, and smart cities, and utilize technologies like Flutter, React Native, Node.js, and Python.
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Article
Hacker News·2y
StarmoonAI/Starmoon: An open source voice-enabled, compact, empathic AI hardware + software 🤖 framework for companionship, entertainment, education, pediatric care, IoT robotics applications, AI-enhan
Starmoon is a portable, AI-enabled device designed for empathetic interaction and companionship. It features voice-enabled emotional intelligence, allowing it to understand and respond to the user's emotions. The device is compact and can be assembled using affordable, off-the-shelf components. It's open-source, ensuring data privacy since you can self-host it. Starmoon aims to reduce screen time by providing non-screen-based AI companionship. Comprehensive setup instructions and required API keys are provided for easy deployment.
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Article
Hacker News·2y
ambianic/peerfetch: Peer-to-peer HTTP over WebRTC.
Peer-to-peer HTTP over WebRTC allows secure, direct access from web browsers to edge devices behind firewalls without needing custom VPN setups, cloud intermediaries, dynamic DNS, or custom firewall rules. It's safe to run in application space and supports end-to-end encryption. Currently available in JavaScript and Python, this approach supports various applications like private home security cameras, IoT device communication, personal web apps, and federated learning.
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Video
NetworkChuck·2y
your home automation SUCKS!!
The author describes a humorous and intricate home automation project designed to solve the issue of a child frequently throwing toilet paper into the toilet. By using a Raspberry Pi with Home Assistant, they create an automated system that alerts the household and initiates various actions such as turning lights red, disabling internet access, and playing a warning message on all TVs when the bathroom door or toilet seat is left open. The project involves setting up multiple smart devices, leveraging ZigBee for local control, integrating with Plex for media playback, and using Twin Gate for remote access.
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Article
CNCF·1y
Understanding k0s: a lightweight Kubernetes distribution for the community
k0s is a lightweight, flexible Kubernetes distribution designed to simplify the setup and management of Kubernetes clusters. It features a single-binary architecture, zero external dependencies, and is optimized for edge and IoT deployments. k0s supports multi-node clusters and offers built-in high availability, making it suitable for small and medium-sized enterprises as well as large production systems. Maintained by Mirantis and Replicated, it provides a streamlined Kubernetes experience with full compatibility with Kubernetes APIs.
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Article
Community Picks·2y
Matt Brown Digs Deep Into an IP Camera's Firmware — and Finds a Hard-Coded Root Password
Matt Brown of Brown Fine Security has demonstrated a serious security flaw in the VStarcam CB73 IP camera by discovering a hard-coded root password. Using a detailed process involving physical hardware examination, firmware dumping, and software analysis with Ghidra, Brown exposed vulnerabilities that highlight the risks of using devices with hard-coded credentials. His findings stress the importance of better security regulations for IoT devices.
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Article
Community Picks·2y
Building a High-Performance Sensor Data API with FastAPI and Postgres' TimescaleDB Extension
This guide helps you build a high-performance API for streaming, storing, and querying sensor data using FastAPI and TimescaleDB. It covers setting up the project, database, and creating API endpoints that efficiently manage and analyze sensor data, leveraging TimescaleDB's advanced time-series features for optimal performance.
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Article
Towards Dev·2y
What Is a Streaming Database?
A streaming database is designed to process large amounts of real-time streaming data, providing real-time insights and analysis. It is ideal for latency-critical applications such as real-time analytics, fraud detection, network monitoring, and the Internet of Things (IoT). Streaming databases differ from traditional databases in their processing approach and can be used alongside other data systems for streaming ingestion and streaming analytics. They also differ from OLTP and OLAP databases in terms of ACID compliance, data correctness, and query optimization.
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Article
Fermyon·2y
Exploring the MQTT Trigger for Spin: Simplifying Real-time Communication
The post explains the use of the MQTT Trigger for Spin framework, which allows real-time communication by subscribing to specific MQTT addresses. It details the steps to install and configure the MQTT Plugin and create a Spin application to handle MQTT messages. The post highlights the efficiency, scalability, and real-time capabilities of MQTT in IoT applications, providing a seamless integration for developers.
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Article
AWS Tip·2y
Event Driven Architecture (EDA): Demystifying EDA
Event Driven Architecture (EDA) is a software engineering design pattern that decouples communication between applications. It is commonly used in enterprise IT systems to allow real-time information flow and enable loosely coupled service teams.
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Article
Hacker News·2y
Embedded Rust in Production ..?
STABL Energy has successfully used Rust on the embedded ESP32 platform in production for over a year. Initially frustrated with a C implementation for their energy storage system, they switched to Rust, which resulted in greater reliability and fewer bugs despite taking longer to write. They experienced a smooth transition and continued improvements in Rust support from Espressif. Although finding developers proficient in Rust remains a challenge, the language has proven effective for their embedded projects.
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Article
Hacker News·2y
Birds Aren't Real - How to Create Your Own "Bird"
Learn how to create a 3D-printed surveillance bird using an ESP32 development board, microservo, powercell, and other components. The project includes designing and printing the bird, writing simple code to control the servo and LED, and soldering and wiring the components together. Detailed instructions and links to necessary parts are provided.
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Article
Hacker News·2y
Reverse-Engineering an IP camera - Part 1
The author discusses their experience with modern IP cameras, highlighting changes in technology and concerns with P2P (Peer-to-Peer) cameras' reliance on external servers for functionality. They explore reverse-engineering a generic camera model, identify that it runs a Linux-based OS, and analyze network traffic to understand its data handling and security implications. Part 1 concludes with a focus on accessing the camera's operating system and understanding its protocols.
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freeCodeCamp·2y
How to Build a Rocket Control System: Basic Control Theory with Python
Learn the fundamentals of building a rocket control system using basic control theory and Python. The guide explores crucial concepts such as PID controllers, transfer functions, and stability analysis using root locus, Bode plots, and Nyquist plots. A step-by-step code example demonstrates the implementation of a PID controller to maintain stability and control of the rocket's trajectory.
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