Smart TV Remote Control APIs: How to Discover and Control TVs Over Wi-Fi
A practical developer guide to discovering and controlling smart TVs over Wi-Fi: SSDP, mDNS, smart-TV APIs, Philips JointSpace, and a simple web remote architecture.
Linux
TV Remote Control Protocols Explained: IR, RC5, RC6, NEC, CEC, and Practical API Examples
Practical guide to TV remote control protocols: IR (NEC, RC5, RC6, Sony SIRC, Samsung, LG), CEC, and REST-style API examples for sending commands with curl and decoding signals.
RPMsg Between Linux and an MCU: One-Way Messaging, Telemetry, and Request-Response
A practical guide to communicating between Linux and an MCU with RPMsg, including one-way commands, periodic MCU telemetry, independent bidirectional traffic, and request-response settings updates.
D-Bus vs gRPC vs MQTT: A Practical Guide to Choosing the Right Communication Pattern
A practical comparison of D-Bus, gRPC, and MQTT: communication models, strengths and limits, real-world use cases, runnable examples, and a decision guide for Linux, embedded, and distributed systems.
How to Print Colorful Text in a Linux Shell Script
A short practical guide to printing colored text in Linux shell scripts with reusable functions for messages, warnings, errors, and status output.
SSH Reverse Tunnel: Expose a Private Linux Machine Behind NAT
Simple, practical guide to SSH reverse tunnels: how they work, when to use them, and the exact Linux commands to expose a private machine behind NAT.
Embedded Linux RAM Requirements: How Much Memory Does Your System Really Need?
A practical guide to sizing RAM for embedded Linux systems: kernel usage, userspace overhead, realistic memory budgets, and optimization techniques for real products.
What Makes a Processor Capable of Running Linux? MMU, RAM, Storage, and Architecture Requirements
Learn what hardware is required to run embedded Linux, including the role of an MMU, practical RAM and storage requirements, why standard Linux does not run on most Cortex-M microcontrollers, and when NOMMU systems make sense.
CUDA and NPU Explained: GPU Acceleration, AI Inference, and Edge Performance for Embedded and Data Center Systems
A clear, practical guide to CUDA and NPU hardware for AI and ML workloads, including what they are, how they are used, where they shine, and simple examples for GPU and edge inference.
Network Protocols Explained: TCP, UDP, DNS, HTTP, HTTPS, FTP, SSH, SCP, NTP, SMTP, POP3, IMAP, SNMP, MQTT and More
A practical guide to the most common network protocols: TCP, UDP, IP, DNS, HTTP, HTTPS, FTP, SSH, SCP, NTP, SMTP, POP3, IMAP, SNMP, DHCP, MQTT, and the port numbers and real-world use cases behind them.