Control the movement of two axis of a mirror with coils and magnets using PWM signals from the Arduino. Steering control for a laser dance machine.

Split the light with a diffraction grating, use a digital camera and read the spectrum intensity with the Arduino mega and a TFT display.

Using a Nextion Touchscreen and an Arudino Micro with the Keyboard library we can make a cool stream deck for livestreams.

A PCB with ESP32 an SSR relay and 220V AC converter. Very small IoT control with Arduino code and homemade PCB. Control via Internet from with database from anywhere in the world.

Tutorial on how to make a homemade FOC controller PCB with L6234PD driver for brushless triple phase motors BLDC with closed loop control and AS5048A magnetic encoder.

Homemade handheld multimeter and PCB with multiple modes for voltage, resistance, capacitance, current, inductance, frequency, diode, continuity and more. Measure everything with such a small PCB and 3D case.

How to make filament out of plasitc bottles with a 3D printer nozzle, bottle cutter and a PCB controlled with Arduino for strady temperature and rotating a stepper motor with 3D printed gears.

How to use the MC4725 Digital to Analog converter module with the Arduino and set a steady voltage, signals for sine, square, triangle and sawtooth

Tutorial on how to program the ESP32 with Arduino IDE and make a WIFI connection, create a database and make a IOT project with POST method and php MYSQL

Recognize voice with the Raspberry pi and send the commands with UART to an Arduino. Voice control and Google Speech API tutorial.