Raspberry Pi, ESP32 & Arduino Tutorials

Build an Arduino Nano DS3231 RTC pet feeder that dispenses on a schedule with a servo, buzzer alerts, and a manual override...

Build an Arduino Nano TCS3200 color-sorting machine that reads candy colors and rotates a servo to route each piece into the right...

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

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

Build an Arduino Nano robot car using an HC-05 Bluetooth module and L298N motor driver for phone control, including wiring and code,...

Build an ESP32 smart greenhouse using a DHT22, soil moisture sensor, and 2-channel relay to automatically run a fan and pump with...

Build an Arduino DS3231 RTC alarm clock with an SSD1306 OLED and buzzer for accurate, battery-backed timekeeping and a reliable daily alarm...

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

Build an iPhone-controlled Arduino Nano project using the HM-10 BLE module to send simple commands that toggle outputs over BLE with ShillehTek...

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

Build an Arduino Nano RC522 RFID smart door lock with an OLED status screen and servo latch action, using simple wiring and...

Build an Arduino Nano DS18B20 sous-vide controller with a relay to hold a water bath near your setpoint for consistent results, using...