Create a new folder in your Arduino libraries folder (ProgramFiles ... OUTPUT); pinMode(12,OUTPUT); pinMode(13,OUTPUT); Otherwise, the board won't know what to do with the instructions. This code ...

#define echo 8 #define RED 2 #define YELLOW 3 #define GREEN 4 #define buzzer 5 float time=0,distance=0; //Time and Distance variables initialized as 0. void measure_distance(); void setup() { ...

Sure, you can just program Arduino on an editor and then paste it on the IDE before uploading. But PlatformIO lets you do that without having to switch windows at all. PlatformIO is an extension for ...