Every Arduino tutorial here is built and tested on real hardware — no untested copy-paste code. You’ll find sensor integrations, motor control, displays, RFID, and complete project builds, each with a wiring diagram and sketch. The boards below are the same pre-soldered Nanos and Megas used in the guides.
Shop the parts used in these tutorials
Arduino KY-026 Flame Sensor: Build a Buzzer Alarm
Build an Arduino KY-026 flame sensor buzzer alarm that detects combustion light and sounds instantly, with simple wiring and an analog threshold...
Arduino Analog Anemometer: Live Wind Speed Readings
Build an Arduino analog anemometer setup that powers the sensor via VIN and converts 0-5V output into live wind speed readings in...
Arduino HX711 Load Cells: Build Calibrated Scale
Build an Arduino HX711 bathroom scale using four 50kg load cells, wire a Wheatstone bridge, and calibrate accurate weight readings with ShillehTek...
Build an Arduino Digital Scale with a 5kg Load Cell and HX711 Amplifier
Turn a 5kg bar load cell and an HX711 amplifier into an accurate Arduino weighing scale: mount the cell correctly, wire the...
Arduino Voice Recognition Module V3: Voice LED Control
Build an Arduino voice-controlled LED using the Elechouse Voice Recognition Module V3, training custom commands for reliable on and off control with...
Arduino R307 Fingerprint Sensor: Enroll and Match IDs
Build an Arduino R307 fingerprint sensor project to enroll up to 127 templates and match IDs with confidence scores for access control...
Arduino PN532 NFC/RFID: Read, Write, Build Wallet
Build an Arduino PN532 NFC/RFID reader-writer with a 1602 LCD, then store packed-BCD credits on a MIFARE tag for an electronic wallet...
Arduino LCD2004 I2C: Hello World on 20x4 Display
Build an Arduino LCD2004 20x4 I2C display that prints Hello World using only four wires, ideal for menus and sensor readouts with...
Arduino ULN2003 Stepper: One-Revolution Control
Build an Arduino-controlled 28BYJ-48 stepper motor project with a ULN2003 driver and get precise one-revolution motion you can repeat every time from...
ESP8266 WS2812 Ring: NTP-Synced NeoPixel Clock
Build an ESP8266 D1 Mini clock with a 24-LED WS2812 NeoPixel ring that syncs time over NTP, giving an always-accurate, colorful desk...
Arduino Reed Switch: Build a Door Alarm
Build an Arduino reed switch door alarm that beeps when a door opens, using a magnetic sensor and buzzer with simple wiring...
Arduino Rain Sensor Module: Flood Detection States
Build an Arduino rain sensor module project that reads A0 and classifies Not Raining, Rain Warning, or Flood for quick water detection...