The problem of microplastics
The first humanoid robot to resist climate conditions
Solar Butterfly, travel around the world with sustainable energy
Plastics, a global challenge
Optocoupler with phototransistor
DHT11 and DHT22, temperature and humidity sensors
Digital voltmeter ammeter: how to use it?
Arduino tutorial (Part 8, IR remote control), 2nd edition
Sawtooth generator circuit
Introduction to phased array antennas
Electret microphone: how does it work?
Meet the LM3915
Initiating with ESP32