Raspberry Pi, ESP32 & Arduino Tutorials

Build an Arduino Nano aquarium controller using a DS18B20 probe, DS3231 RTC, relays, and OLED to automate heater control and daily lighting...

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

Build an Arduino Nano GPS speedometer using a NEO-6M module and SSD1306 OLED for a clear, wheel-sensor-free speed readout outdoors with ShillehTek...

Build an ESP32 beehive monitor with HX711 weight sensing plus DS18B20 and DHT22 climate data, then view trends remotely on a Wi-Fi...

Build an Arduino Nano power bank with INA219 monitoring and an SSD1306 OLED to display live voltage, current, and power using parts...

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

Build an Arduino Nano bike theft alarm using an ADXL345 accelerometer to detect motion, trigger a loud buzzer, and send Bluetooth alerts...

Build an ESP32 garage door controller with a reed switch and relay for remote open/close and real-time door status alerts over Wi-Fi,...

Build a TPA3118 Class-D 60W mono speaker amplifier from a phone 3.5mm jack and 12 to 24V supply, using parts available from...

Build an Arduino Nano EMG muscle sensor controller that drives a servo claw when you flex, a practical starting point for biofeedback...

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

Build an Arduino Nano INA219 wattmeter to read voltage, current, and power over I2C for accurate low-current monitoring, using parts from ShillehTek.