ESP32 Web Serial API: Live Sensor Data in Next.js
What we built An ESP32 plugged into a PC over USB, with a web app (Next.js) connecting directly to the serial port through the Web Serial API and sh…
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Why Windows IPCs Fail in Harsh Telemetry Stations & How RTOS Embedded Dataloggers Solve It
TL;DR for IIoT Architects & System Integrators: Deploying consumer Mini PCs or fanless Windows Industrial PCs (IPCs) in unmanned environmental t…
Model Pest Control So Activity Has a Location and an Owner: Device, DeviceCheck, Sighting and CorrectiveAction
By Isaac Muthui, CEO, Tamalaki Business Network Ltd. Originally published at factoraerp.com . In most factory systems, pest control does not exist a…
Getting Started with OCPP 1.6 Using a Simulated Charger
If you have ever plugged in an electric car at a public charger, two computers had a conversation you never saw: the charger (the charge point ) and…
How to Protect Indoor‑Only Gear in a Marine Environment
Boaters are an optimistic species. We believe we can dock perfectly on the first try, that the weather will “probably hold,” and that our delicate,…
ESP32-iPhone-Agent: AI Control for Physical iPhones
Building AI agents to interact with a physical iPhone has historically been a headache. Traditional methods often demand a Mac, Xcode, an active App…
The Internet of Things is Held Together With Duct Tape and Default Passwords[Badly]
My smart light bulb tried to mine crypto last Tuesday. Not a joke. Not a metaphor. I have a cheap Tuya bulb I bought from for $12.99 in 2023. "Smart…
From ClasseViva to Home Assistant: a dashboard architecture in practice / Da ClasseViva a Home Assistant: architettura di una dashboard in pratica
English Italiano The challenge ClasseViva presents school information across different screens. CVV Dashboard brings averages, grades, noticeboard m…
Debugging nighttime PoE camera restarts: power, cable and recording checks
A PoE camera can work during the day and restart when its lighting activates. Power is one possible cause; a frozen live view alone does not prove a…
Can We Build Smart Mines That Predict Danger Before It Happens?
Can We Build Smart Mines That Predict Danger Before It Happens? ⛏️🤖 Imagine a mining environment where dangerous gases, structural vibrations, and w…
Commercial Property in Delhi NCR: Green Ratings Decoded published: false
If your company is shortlisting commercial property in Delhi NCR, the brochures will show green badges. LEED Platinum. IGBC Platinum. GRESB 5-Star.…
SQL Server for Genetec Security Center
When a Security Center system slows down, the first suspect is usually the Archiver and the second is the network. In my experience the database is…
HI
💥Don't be silly! Just connect the LED directly to the power supply, and it will die on the spot for you to see! Who hasn't soldered a few LEDs when…
Low-Cost Air Quality Monitor with Arduino and MQ135 for STEM Education
At Enviro Education Tools, we document low-cost environmental monitoring tools for STEM education. One of our open demos is a basic air quality moni…
How Window Cleaning Robots Actually Work: Sensors, Navigation, and Safety Systems Explained
Smart home robotics usually begins with floor vacuums, but vertical glass traversal introduces an entirely distinct set of physical constraints. Whe…
Voice2Note: I spoke to a ring for four hours, and the phone misheard me
This is a submission for the Hacktoberfest Open-Source AI Challenge: Week 1, "Touch Grass" What I Built I wore a Pebble Index 01 , a ring with one b…
Building an Asset Tracking System That Turns Events Into Actions published: true tags: architecture, iot, backend, systemdesign
Asset tracking sounds simple on paper: figure out what a thing is and where it is. Then you add a second location, a third device type, and a wareho…
JalRakshak Garden AI: Bringing Open-Source AI Into the Garden 🌱
This is a submission for the Hacktoberfest Open-Source AI Challenge Week 1: Touch Grass . What I Built 🌱 JalRakshak Garden AI is a local-first, AI-p…
light monitering system
I’m a second-year computer science student, and I wanted to understand how a sensor reading gets from a small board to a web page. So I picked the s…
Push-уведомления от IoT устройств: краткий гайд с TuyaOpen [No-code]
Чтобы устройство умного дома присылало уведомления на телефон, писать мобильное приложение не обязательно. Приложение, экран устройства и рассылку п…
HACKTOBER FEST
We built CampusWatch this Hacktoberfest: a 3D campus energy monitor that spots devices left on in empty rooms, catches sudden power spikes, and aler…
What a 905 nm rangefinder datasheet does not tell you
What a 905 nm rangefinder datasheet does not tell you Four gaps I found while verifying the UART protocol of an LR1000E2-class 905 nm laser rangefin…
AIoT in Pharma Manufacturing: It's Mostly a Data Plumbing Problem
If you've ever looked at the systems inside a pharmaceutical plant, the first thing you notice is that there's no shortage of data. Machines log ope…
⚡ Proprietary RJ50 Cable Reveals the Truth ⚡
Follow-up Post Previously I wrote about my experience where I built an app for my dad to analyze our home power use. You can read about that here: ⚡…
Why Industrial Edge Gateways Need Store-and-Forward
Why Industrial Edge Gateways Need Store-and-Forward Many teams still treat an industrial edge gateway as a simple protocol bridge: collect data from…
Top IoT Development Tools & Platforms for 2026
Developing Internet of Things (IoT) applications requires a balanced combination of hardware controls, low-latency protocols, real-time data ingesti…
Designing offline-first edge sync in physical access control systems: How are you handling cache invalidation?
Hi DEV community, We are currently architecting an edge-to-cloud synchronization layer for a high-throughput physical security deployment (managing…
Validating Container Numbers from Gate OCR with the ISO 6346 Check Digit
Container depots and terminals increasingly read container numbers with OCR cameras at the gate. OCR is fast, but it is not perfect: a smudged 8 bec…
Securing Citrix NetScaler: A Checklist for Operators, Including OT
If you run Citrix NetScaler ADC or Gateway, you need to do three things now: Install the fixed builds (14.1-73.37 or 13.1-64.23, or the correspondin…
I've never run an AI model on my own machine. This month I will.
Hi DEV, I'm Ankan, a CS student. I build whole projects end to end — the code that runs on a tiny chip, the server behind it, and the website on top…