Arduino multiple variables in string

Question

I am trying to get a string containing the uptime of my Arduino. I'm using this code:

long t = millis() / 1000;
word h = t / 3600;
byte m = (t / 60) % 60;
byte s = t % 60;
String uptime =  h/10 + h%10 + m/10 + m%10 + s/10 + s%10;

But I get 'invalid conversion' errors. Should I do this with sprintf or something?

m-sarabi · Accepted Answer · 2024-09-30 05:48:19Z

0

If you are forced to use C: yes, sprintf or, much better, snprintf is the right way to go for you. If you are using C++ and the STL is available, you should use std::string (but I am not sure if this is there).

edited Sep 30, 2024 at 5:48

m-sarabi

2,3101 gold badge18 silver badges25 bronze badges

answered Feb 21, 2014 at 12:38

KimKulling

2,8531 gold badge17 silver badges33 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

AMPS · Accepted Answer · 2014-02-21 12:38:06Z

0

Its type cast operation needed . How you could expect work. one is integer , byte and reading in string format.

answered Feb 21, 2014 at 12:38

AMPS

3093 silver badges11 bronze badges

Collectives™ on Stack Overflow

Arduino multiple variables in string

2 Answers 2

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related