I got this sketch off the internet with a Cut and Paste and I hope I've got the error/code format right. Copied the error message, Code tags etc. The sketch won't verify/compile. The error is something about redefinition of "volatile int rpmcount". There's a reference link to volatile and I've look…

Redifining Volatile Error

Coding_Badly November 12, 2017, 3:11am 5

 if (millis() - lastmillis == 1000){  /*Uptade every one second, this will be equal to reading frecuency (Hz).*/

Needs to be greater than or equal.

Topic		Replies	Views
Interrupts Syntax & Programs	43	65286	May 6, 2021
Compile error "redeclared as different kind of symbol" Programming	5	45669	May 5, 2021
Left over variables on reset or strange interrupt behaviour Programming	25	3454	May 5, 2021
Error on volatile variable in a self created library Programming	15	2211	May 5, 2021
How can 256 be greater than 500? Syntax & Programs	27	7175	May 6, 2021