Arduino Nano Tutorials

Build an Arduino Nano EM4100 125 kHz RFID door lock with EEPROM multi-card access and a relay-driven electric strike ...

Build an Arduino Nano + ACS712 current sensor meter to measure AC/DC current up to 30A, with zero-offset calibration ...

Build an Arduino Nano light-following robot using two KY-018 photoresistors and an L298N for differential steering, w...

Build an Arduino YF-S201 water flow meter to measure liters per minute and total liters for dosing, monitoring, and l...

Wire an Arduino Nano to a DRV8825 to drive a NEMA 17 with correct current limit and 1/32 microstepping for smoother, ...

Build an Arduino Nano MQ-2 gas and smoke alarm with a buzzer threshold alert, plus optional OLED readout and ESP32 Wi...

Build an AC 220V time delay relay mains timer with optional ESP8266 WiFi triggering for fans, pumps, and lights using...

Build an Arduino Nano USB ultrasonic mist maker diffuser with relay control, WS2812B lighting, and a soil sensor opti...

Compare Arduino Nano resistive vs capacitive soil moisture sensors to get stable long-term readings, avoid corrosion ...

Build an Arduino Nano MAX30102 pulse oximeter that shows live BPM and optional SpO2 on an SSD1306 OLED, using the Spa...

Build an Arduino Nano clock with a DS3231 RTC and TM1637 display for a drift-free desktop alarm clock with temperatur...

Build a hidden touch switch using an Arduino Nano and TTP223B to toggle a relay through acrylic or wood, for clean en...