and the cat can eat the food. This is made by recycling an old CD player that you can get from an old computer, some cardboard, tape, couple of sensors, a few blinking LEDs, and then suddenly you have a tool. You build something
E dintr-un CD player reciclat luat de la un computer vechi, senzori, câteva LED-uri de semnalizare, și iată, ai un dispozitiv.