Learn & Build
Guides
Step-by-step tutorials and project walkthroughs — from first blink to full builds.
Hall Effect Sensors Explained: Switch vs Latch vs Linear
Switch, latch or linear? A plain-English guide to picking the right hall effect sensor for your Arduino or ESP32 project, with wiring, code, and fixes for...
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GuideHow to Use the 28BYJ-48 Stepper Motor with Arduino and the ULN2003 Driver
A complete beginner's guide to wiring, coding and troubleshooting the 28BYJ-48 stepper motor with the ULN2003 driver and Arduino. NZ based, with the classic pin-order fix...
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GuideHow to Wire a Resistor
Learn how to wire a resistor: they have no polarity, how to protect an LED, choosing a value with Ohm's law, and reading the colour bands....
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GuideGetting Started with the ESP32-WROOM-32 (USB-C)
New to the ESP32? This step-by-step guide takes you from an unopened board to a blinking LED in about 10 minutes. Drivers, Arduino IDE setup, and...
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GuideWire & Control an MG90S Servo with Arduino or ESP32
Wire up an MG90S metal-gear servo and swing it to any angle with a few lines of code, wiring, the Arduino/ESP32 code, and how to power...
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GuideBreadboard Basics: Build Your First Circuit (No Soldering)
Brand new to electronics? A breadboard lets you build circuits in seconds with no soldering. Learn how it works and light your first LED.
Read moreNew - NZN Electronics Guides
Welcome to NZN Guides — plain-English, no-gatekeeping tutorials to take you from "no idea what I'm doing" to "I built that." Here's why we're doing it,...
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