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
ESP32 HLK-LD2450: Live Web Radar People Tracking
Build an ESP32 + HLK-LD2450 mmWave radar web page that tracks up to three people with live X/Y coordinates, distance, and speed,...
ESP32 WebSocket Dashboard: Live Browser Sensor Chart
Build an ESP32 WebSocket dashboard that streams KY-018 and DHT11 sensor readings to a live browser chart twice per second, self-hosted with...
D1 Mini I2C LCD: Live YouTube Stats Display
Build an ESP8266 D1 Mini + I2C LCD YouTube subscriber counter that pulls live channel stats from the YouTube Data API, shown...
ESP32 ST7789: Live weather and 5-day forecast
Build an ESP32 ST7789 TFT weather station that pulls live conditions and a 5-day forecast from OpenWeatherMap, refreshing every 10 minutes with...
Arduino EEPROM: Save Settings After Power Loss
Build an Arduino EEPROM pattern to save LED state and a settings struct that survives power loss, using update(), put(), and get()...
ESP32 ST7789 TFT: Scan Nearby Wi-Fi Networks
Build an ESP32 + ST7789 TFT Wi-Fi scanner that shows nearby SSIDs, RSSI, channel, and security so you can optimize coverage and...
Arduino CapacitiveSensor: Touch Toggle Lamp Switch
Build an Arduino CapacitiveSensor touch button from a coin and 1M resistor to toggle an LED or relay, with auto-calibration and optional...
ESP32 FreeRTOS Tasks: Dual-core multitasking guide
Build ESP32 FreeRTOS tasks that read a DHT11 and update an SSD1306 OLED using queues and core pinning for smooth dual-core multitasking...
ESP32 BLE UART: Phone Control and Notifications
Build an ESP32 BLE UART (NUS) server to control an output from a phone and receive live sensor notifications, using a simple...
ESP32 Servo: Control LED brightness by web sliders
Build an ESP32 web page with live sliders to dim an LED with PWM and set a servo angle from your phone,...
ESP32 DHT11 MQTT: Home Assistant dashboard sensor
Build an ESP32 DHT11 room sensor that publishes MQTT to Home Assistant for live dashboard gauges, history, and simple automations, with ShillehTek...
ESP32 ESP-NOW: Send DHT11 Data to OLED
Build an ESP32 ESP-NOW sender and receiver to broadcast DHT11 temperature and humidity to an SSD1306 OLED with no router, using parts...