@Cristin
arduino , ir sensor, (recomand asta daca nu le ai cu codingul asa tare si vrei totul mura in gura )
https://create.arduino.cc/projecthub/Raushancpr/arduino-with-ir-sensor-1579b6
rasbery pi, ir sensor ( daca stii ceva python)
https://circuitdigest.com/microcontroller-projects/raspberry-pi-ir-sensor-tutorial