Electronic Load Tester
MOSFET and Op-Amp constant-current sink for battery capacity testing and power supply load regulation, with OLED readout and over-temperature protection.
Hobby Electronics Lab
Build wild circuits.
Learn by soldering.
FullyAutomatix is a maker site dedicated to practical electronics projects, microcontroller experiments, and 3D-printed enclosures for complete home automation systems and custom gadget builds.
Featured Projects
Builds You Can Finish This Weekend
Mini Wireless Repeater
ESP8266-based WiFi range extender with external antenna mod for enhanced coverage. Built with the Wemos D1 Mini for compact, affordable network extension.
12V UPS
Bench-top uninterruptible power supply using a Li-Ion 3S2P cell pack with active current limiting, BMS protection, and sub-20 ms automatic switchover.
Auto-Off Timer
Mains-connected auto-off timer using a C005 timer IC, relay output, and a transformerless capacitive power supply on a compact single-layer PCB.
Favorite Gear
Tools & Components That Actually Get Used
The gear, modules, and tools that show up in nearly every project — picked for reliability, affordability, and getting the job done without fuss.
Tools
Pinecil Soldering Iron
USB-C powered soldering iron with precision temperature control and open-source firmware. Rapid heat-up, portable, and incredibly affordable.
Microcontrollers
ESP8266 D1 Mini
Tiny WiFi microcontroller board with Arduino compatibility. Perfect for IoT projects, home automation, and sensor networks.
Tools
Wireless Dremel
Cordless rotary tool for cutting, drilling, and finishing 3D-printed enclosures. Freedom from power cords makes all the difference.
Power
XL4015 CC/CV Module
Buck converter with constant-current and constant-voltage modes. Perfect for battery charging, LED drivers, and bench power supplies.
Power
XL6019 Boost Converter
High-efficiency boost converter for stepping up voltage. Run 12V devices from USB power banks or batteries.
Power
Mini360 Buck Converter
Ultra-compact step-down converter that fits anywhere. High efficiency and adjustable output in a tiny package.
Resources
YouTube Channels and Blogs That Inspire Builds
A running list of creators, educators, and blogs that have shaped many of these hobby electronics and 3D-printing automation ideas.
- GreatScott!: Practical electronics explanations, test equipment usage, and clear project walk-throughs.
- Andreas Spiess: Deep dives into ESP boards, sensors, power strategies, and home automation integrations.
- DroneBot Workshop: Breadboard-to-firmware tutorials that are ideal for hobby prototyping and learning-by-doing.
- Adafruit Learning System: Structured project guides, code examples, and troubleshooting notes for all skill levels.
- SparkFun Blog: Build ideas, product teardowns, and approachable tutorials for sensors, comms, and embedded gadgets.
- Hackaday: Daily inspiration from creative hardware hacks, reverse engineering, and custom fabrication.
Component Sourcing
Where to Buy Electronics Parts
Use this section to keep your go-to vendors for sensors, passives, modules, connectors, and prototyping hardware. These links are easy to swap with your preferred sources.
- DigiKey: Excellent stock depth, fast shipping, and strong parametric search for exact components.
- Mouser: Great for broad manufacturer coverage, datasheet access, and engineering-grade parts.
- LCSC: Very cost-effective for hobby and small-batch builds with wide module and component variety.
- Adafruit: Best for beginner-friendly breakout boards, clear documentation, and reliable tutorials.
- SparkFun: Strong prototyping ecosystem with useful dev boards, shields, and educational resources.