Practical, no-fluff guides for makers, hobbyist electricians, and Arduino builders — from your first solder joint to a fully wired workshop.
Every guide on ElectricalFlux lives in one of three core hubs, with a fourth fundamentals hub rounding out component and tool knowledge.
Irons · flux · technique
Everything from your first soldering iron to flux chemistry, through-hole and surface-mount technique, and side-by-side buyer guides for irons, stations, and kits.
Arduino · ESP32 · sensors
Boards and platforms, real-world projects, sensors and peripherals, plus the coding and communication protocols that tie it all together — from first sketch to production-grade firmware.
Outlets · diagrams · remodels
Switch and outlet wiring, device and appliance wiring diagrams, and full general-purpose wiring guidance for remodels, harnesses, and code-compliant residential work.
Explore Electrical WiringTopical-authority fundamentals — electronic components, prototyping, and the electrical tools and test gear every maker and electrician should know.
General Arduino & MCUStruggling to learn how to program Arduino? Fix the 5 most common beginner compilation, driver, and upload errors with this step-by-step troubleshooting guide.
General Wiring & ProjectsCompare DIY vs professional costs, code risks, and safety factors for electrical wiring in homes. Learn when to pull cable and when to call a pro.
Comparisons & Buyer GuidesMaster copper tube soldering with our expert FAQ. Troubleshoot pinhole leaks, cold joints, and flux issues using precise temperatures and proven techniques.
General Arduino & MCUDiscover the best programmer Arduino setups for 2026. Compare USBasp, Pololu, and Arduino-as-ISP for flashing ATtiny and burning bootloaders.
Soldering Techniques & How-ToMaster advanced techniques for soldering copper water pipes. Learn pro methods for wet lines, vertical joints, and tight-space heat management.
Coding & CommunicationDiscover the best Arduino programming classes for mastering I2C, SPI, UART, and LoRa IoT communication setups. Compare syllabi, pricing, and hardware.
Coding & CommunicationMost students finish an arduino programming course knowing basic loops. Learn advanced code patterns, FSMs, and memory management for production firmware.
General Arduino & MCUMaster board, shield, and sensor compatibility. This guide for Arduino beginners covers 5V vs 3.3V logic, pinouts, and IDE 2.x library mapping.
General Wiring & ProjectsMaster troubleshooting electrical wiring for homes with our diagnostic guide. Fix dead outlets, tripping breakers, and flickering lights safely.
ElectricalFlux is built around three high-volume, low-difficulty content pillars. The Solderinghub covers irons and stations, flux and consumables, hands-on technique, kits and gear, and head-to-head buyer guides — from “what is soldering” to propress-vs-solder comparisons.
The Microcontrollers hub is the largest keyword pool on the site, spanning Arduino and ESP32 boards, real-world projects, sensors and peripherals, and the coding and communication protocols (I²C, SPI, Serial, Bluetooth) that tie them together.
The Electrical Wiring hub is the biggest by search volume and the easiest to rank in: switch and outlet wiring, a deep library of device and appliance wiring diagrams, and general-purpose wiring guidance for remodels and harnesses — all grounded in the NEC.
Real content across 15 focused categories.
Soldering
Microcontrollers
Electrical Wiring
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