Arduino Tutorials

Learn how Arduino microcontrollers and Raspberry Pi Linux boards differ, when to use each (or both), and avoid GPIO v...

Compare Arduino UNO R3, Leonardo, UNO R4 Minima, and UNO R4 WiFi to pick the right board based on USB, I/O, power, an...

Build ESP32 BH1750 motorized Wi-Fi blinds control with a 28BYJ-48 stepper and ULN2003, plus optional light-based auto...

Build an ESP32 + MPU6050 wrist-worn sleep tracker that logs motion all night and plots deep sleep vs REM from activit...

Build an ESP32 + ADS1115 multi-plant soil monitor that reads 4 moisture sensors and serves live Wi-Fi dashboard value...

Build an ESP32-CAM bird feeder that uses a PIR sensor to snap photos and an HX711 load cell to log seed weight to a W...

Build an Arduino Nano ultrasonic theremin with an HC-SR04 sensor and KY-006 buzzer for gesture-controlled pitch in ab...

Build an ESP32 DS18B20 Wi-Fi BBQ thermometer with OLED readout and Telegram alerts, so you can monitor long smoker co...

Build an ESP32 + relay Wi-Fi smart plug you can control via web UI or MQTT, with Tasmota-compatible options and no cl...

Build an ESP32-S3 NEO-6M SX1262 no-SIM LoRa GPS tracker that transmits live coordinates to a base station for off-gri...

Build an Arduino Nano MAX30102 pulse oximeter with an SSD1306 OLED for live BPM and SpO2 readout using simple I2C wir...

Build an ESP32-CAM doorbell with an HC-SR501 PIR sensor that snaps a photo on motion, saves to microSD, and sends Wi-...