Raspberry Pi is one of the most popular platforms for IoT projects due to its affordability and flexibility. When combined with Node-RED, it becomes a powerful tool for automating workflows, connecting sensors, and building real-time dashboards. In this guide, you’ll learn how to deploy Node-RED on Raspberry Pi step by step, from installation to first […]
Automation is evolving quickly, and Node-RED remains one of the most powerful tools for creating flows that connect devices, services, and APIs without heavy coding. In 2025, developers, engineers, and hobbyists are using Node-RED not just for IoT projects but also for smart homes, factories, and energy monitoring. In this post, we’ll explore the best
In today’s manufacturing and IoT environments, machine monitoring is crucial for efficiency and predictive maintenance. By combining Node-RED for data collection and Grafana for visualization, you can build a powerful real-time monitoring solution. In this guide, you’ll learn how to monitor machines with Node-RED and Grafana step by step. Why Use Node-RED and Grafana Together?
If you are working with IoT devices, you know they generate a huge amount of data every second. Without proper visualization, it’s difficult to understand device performance, energy usage, or machine health. In this guide, we’ll cover how to create IoT monitoring dashboard in Grafana step by step. This beginner-friendly tutorial will help you set
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If you’ve ever wanted to build IoT projects or automate tasks without getting lost in complex code, Node-RED is a great place to start. This open-source platform makes it easy for both beginners and professionals to connect devices, APIs, and services using a simple drag-and-drop interface. At Tech Knowledge, we share practical guides on IoT,
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Finding a good pair of noise-cancelling headphones under ₹5,000 in India used to feel impossible. A few years ago, ANC (Active Noise Cancellation) was a premium feature limited to ₹15,000+ models. But in 2025, brands like boAt, JBL, Sony, and CrossBeats have made it affordable for everyday users. If you work from home, travel in
Best Noise-Cancelling Headphones Under ₹5,000 in India (2025 Guide) Read More »
Technology is moving faster than ever. From AI-powered assistants to smartwatches that last days on a single charge, innovation is reshaping how we work, study, shop, and relax. Keeping track of these changes isn’t just about being trendy—it helps us prepare for the future. In this article, let’s look at the top technology trends of
Latest Technology Trends and How They Impact Our Daily Lives Read More »
Learning coding has become one of the most valuable skills in 2025. Whether you’re a student, job seeker, or STEM enthusiast, starting with the right platform makes a huge difference. The good news is there are many free coding websites that provide step-by-step lessons, interactive challenges, and real-world projects – techknowledge.in. 👉 If you’re looking
Choosing the right laptops for coding and STEM students in 2025 can be confusing. Students need devices that handle programming, simulation software, data analysis, and online learning tools—without breaking the budget. Unlike gaming laptops or ultra-high-end models, STEM-focused laptops should be affordable, lightweight, and efficient. 👉 If you’re also looking for a smartphone that matches
Laptops for Coding & STEM Students in 2025 – Affordable & Performance Picks Read More »
In 2025, smartwatches for students and professionals are more than gadgets—they’re essential tools for productivity, study focus, and health tracking. If you’re a student looking for an affordable smartwatch under 20000 for online classes, or a professional needing a productivity smartwatch for office work, this guide is for you. 👉 Don’t miss my post on
