https://calahumanatronic.com/mini-sumo-con-arduino-nano/
https://www.instructables.com/How-to-Make-Arduino-Sumo-Robot/
int trigPin = 12; int echoPin = 11; int led1 = 2; int led2 = 3; int led3 = 4; int led4 = 5; long duracion; int distancia; void setup() { S...