Rechargeable Battery Care: Temperature, Charge Limits, and Storage
Practical rechargeable battery care: useful charge thresholds, temperature limits, storage habits, charger selection, and differences between lithium-ion, LFP, NiMH, and lead-acid.
Posts
RabbitMQ and Its Competitors: A Practical Guide to Choosing a Message Broker
Learn how RabbitMQ works, compare Kafka, NATS, Redis Streams, SQS, and Artemis, and run a short Python example with practical reliability tips.
Zigbee for Embedded Linux: Practical Guide, Hardware, and Protocol Comparisons
A practical Zigbee guide for embedded and Linux developers: mesh basics, protocol comparisons, MCU hardware, libraries, and a Zigbee2MQTT gateway example.
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.
How to Check CVEs and Vulnerabilities in a Yocto Image
A short practical guide to scanning Yocto packages and libraries for CVEs, listing affected versions, and saving a useful vulnerability log.
NaN in Practice: What It Is, When to Use It, and How to Parse It Safely
Practical guide to NaN: IEEE 754 behavior, parsing in different languages, when it helps, and how to protect code from silent bugs.
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.
Bootloader vs Firmware vs Operating System: Understanding Embedded Software Layers
Demystify the embedded software stack. Learn the differences between bootloaders, firmware, and OS—and why each layer exists in MCUs and MPUs.
Meshtastic Explained: Long-Range LoRa Mesh Messaging Without Internet
Complete guide to Meshtastic: off-grid mesh messaging with LoRa radios. Hardware setup, software configuration, real-world use cases, and code examples.
Choosing the Right Microcontroller for Your IoT Project: ESP32, STM32, nRF, RP2040, or RISC-V?
Practical MCU selection guide comparing popular families for IoT projects. Understand cost, power consumption, wireless capabilities, and ecosystem before choosing your next microcontroller.