Hi, I added a line what I like to have is to sign the distance to U i, i = 0, 1, 3, how should I do it please? Thanks Adam #include <NewPing.h> #define SONAR_NUM 3 // Number of sensors. #define MAX_DISTANCE 200 // Maximum distance (in cm) to ping. NewPing sonar[SONAR_NUM] = { // Sensor …

You cannot invent variable names at runtime but you could use an array U[3] and hold values in the array addresses of U[0], U[1] and U[2]

'Ui' was not declared in this scope

shanren August 28, 2021, 6:16pm 3

Thanks.
"U" is declared in front, and ,' i' is declared in for. How to use them together?

Topic		Replies	Views
Help with wording sketch Programming	8	1231	May 5, 2021
'pulseTime1' was not declared in this scope Syntax & Programs	4	3389	May 6, 2021
Ultrasonic Distance Sensor with NewPing Library Code Error Programming	3	873	May 5, 2021
Creating a function, needs some help Programming	8	2140	May 5, 2021
Weird "not declared" error, Please help Programming	9	4111	May 5, 2021