Arduino Tutorials

Build an ESP32 beehive monitor with HX711 weight sensing plus DS18B20 and DHT22 climate data, then view trends remote...

Build an ESP32 air quality dashboard using an MQ-135, DHT22, and SSD1306 OLED, with live readings on-screen and on a ...

Build an ESP32 garage door controller with a reed switch and relay for remote open/close and real-time door status al...

Build an Arduino HX1838 IR receiver reader that decodes any remote into HEX button codes, making it easy to map input...

Build an ESP32 Wi-Fi weather station with a BME280 sensor and ST7735 TFT display to show indoor readings plus OpenWea...

Build an ESP32 + HC-SR501 PIR mailbox notifier that sends Telegram alerts when the door opens, helping you avoid wast...

Compare ESP32 vs ESP8266 in 2026 to pick the right Wi-Fi microcontroller board based on GPIO, Bluetooth, ADC, cost, a...

Build an Arduino MAX7219 dot matrix scrolling LED marquee for readable signs and status messages using only 3 control...

Build an Arduino IR obstacle sensor trigger that blinks the onboard LED and prints Serial alerts using a simple HIGH/...

Build an Arduino PCF8574 I2C GPIO expander project to drive 8 LEDs using only SDA and SCL, freeing pins for bigger bu...

Build a safe 3.3 V to 5 V interface using an Arduino and the TXS0108E 8-channel level shifter, protecting 3.3 V devic...

Build an Arduino MAX3421E USB Host Shield project that reads a USB HID barcode scanner and prints each scan to Serial...