IoT & ESP32: The Complete Smart Devices Guide
Everything WiFi, MQTT and sensors: build connected devices that never brown out the complete IoT path with ESP32, MQTT and smart-home builds.
IoT, Sensors & ESP32
ESP32/ESP8266 programming, WiFi and MQTT, cloud dashboards, sensor interfacing and complete smart-home builds., 23 tutorials
5G Architecture Explained: What Actually Changed
Network slicing, massive MIMO and edge computing the real engineering inside 5G, honestly separated from the marketing.
Biomedical Sensors: How Wearables Measure the Body
From ECG patches to pulse oximeters the sensing principles, and the safety lines hobby projects must never cross.
Antenna Basics for IoT: Wavelength, Gain and Matching
Why a 17 cm piece of wire outperforms a bad PCB antenna wavelength, gain, polarization and matching for makers.
LoRaWAN for Beginners: Long-Range IoT Without WiFi
Kilometres of range on microamps how LoRa modulation and LoRaWAN networks work, and when to choose them.
ESP32 Getting Started: First Flash and WiFi Scan
Toolchain setup, board selection and your first WiFi scan sketch the modern entry point to connected hardware.
ESP32 GPIO and Strapping Pins: What Not to Use
Which pins are safe, which are secretly reserved for boot, and the input-only pin that confuses everyone.
ESP32 WiFi That Never Dies: Reconnection Strategies
Router reboots, dead zones and sleep wake-ups should not require human intervention the professional reconnect pattern.
MQTT Explained: The Protocol Behind Practical IoT
Publish/subscribe, topics, QoS levels and retained messages why MQTT became the IoT lingua franca.
Setting Up a Mosquitto MQTT Broker on Raspberry Pi
Install, configure authentication, open the ports properly and test with mosquitto_sub a local broker in fifteen minutes.
DHT22 with ESP32: Accurate Temperature and Humidity
Wiring, library choice, read-timing rules and calibration checks for the most-used climate sensor.
HC-SR04 Ultrasonic Sensor with ESP32: Distance Done Right
Echo timing, voltage level-shifting on ESP32, mounting rules and filtering for stable distance readings.
ESP32 Deep Sleep: Months of Battery From One Cell
Timer and touch wake-ups, what survives sleep, and the current math that turns days of runtime into months.
Home Assistant + MQTT: A Local Smart Home That Lasts
Broker settings, discovery messages and ESPs as first-class citizens a cloud-independent automation backbone.
IoT Security Best Practices: Lock Down Your Devices
Credentials, OTA updates, network segmentation and firmware hygiene practical security for home-scale IoT.
ESP32 vs Raspberry Pi 5: Which is Best for Your Project? 2026 Guide
ESP32 or Raspberry Pi: the honest decision framework covering real-time control, power budgets, AI workloads, connectivity and total cost of ownership.
Renter Hack: How to Install a Video Doorbell Without Any Existing...
For a technician, “Wireless” is a misnomer. While the data travels via 2.4GHz RF waves, the hardware still demands a reliable DC or AC potential to drive the CMOS sensor and the WiFi SoC Sys…
DIY IoT Smart Home Using ESP32 Local Home Automation Guide
ESP32 Power: Leverage dual core processing for jitter free 220V relay control. Data Driven: Optimized for low power 9.6µA and high load stability. Future Proof: Fully compatible with Home As…
ESP32 Brownout Detector Triggered? Causes & Fixes
ESP32 brownout resets explained: why the detector trips, how to measure the real cause on the bench, and the five fixes that actually work.
Arduino to ESP32 Microcontroller Guide for Engineers
Moving from Arduino to ESP32 the engineering way: GPIO physics, ADC precision tricks, I2C protocol internals, debouncing and power design that survives the field.
Gyroscope Sensor Explained: Working, Arduino & Uses
Gyroscopes measure angular velocity ° s using the Coriolis effect in vibrating MEMS structures Core equation: Ω = a_c 2 × v × sinθ MEMS gyroscopes cost $0.80-$5; ring laser gyros cost $15,00…
Mobile Edge Computing (MEC): What It Is & How It Works
Edge computing from its 2009 origins to modern MEC architecture: IoT edge gateways, on-device AI and the latency math that decides where computation belongs.
How to Measure Room Temperature Accurately at Home
From digital thermometers and smart sensors to NTC thermistor formulas, RTD equations, two-point calibration, error analysis, and ISO/ASHRAE standards the most complete room temperature guide.