I am trying to define a #define in Arduino but I have error on line 7, this is the error shown: expected primary-expression before '{' token This is my code: unsigned long timeout_start; unsigned long timeout_ms; #define TIMEOUT_2000MS 2000 #define ERROR_TIMEOUT 1 #define TIMEOUT_START { timeo…

[image] wrsalasr: #define TIMEOUT_CHECK { if (millis() - timeout_start > timeout_ms) return ERROR_TIMEOUT; } while (!Serial.available() && TIMEOUT_CHECK) { delay(1); } You CAN use your existing definition of TIMEOUT_CHECK but you have to use it as a statement. You can't put a statemen…

Error with definition of #define

Projects Programming

anon73444976 November 4, 2021, 6:34pm 2

Not posting the error message.

That one

Hint: try the macro expansion manually.

Topic		Replies	Views
#define not working [solved. my mistake] Bugs & Suggestions	3	4244	May 6, 2021
error when compiling Syntax & Programs	3	1287	May 6, 2021
Problem with arduino 0022 IDE Programming	6	2338	May 5, 2021
#define problems Frequently-Asked Questions	12	8716	May 6, 2021
New to Arduino: Error, expeced primary-expression before '=' token Programming	5	1141	May 5, 2021

Error with definition of #define

Related topics