[Bug]: ESP32 "HW TIMER NEVER INIT ERROR" with MicroGirs about arduino-irremote

[ArminJo]

Thanks for reporting! 👍

[ArminJo]

Thank you very much, I will include the fix it in the forthcoming release.

[whc2001]

Just found that if I don't stop the receiver after successfully receiving a signal, the error won't appear... But will that cause any problem?

Commenting out this line and the problem is away:

Arduino-IRremote/examples/MicroGirs/MicroGirs.ino

Line 290 in e36bcaa

IrReceiver.stop();

[ArminJo]

Which ESP32 core version do you use?
There are bugs in the timer functions in some 2.x versions. See here

[whc2001]

Ahh it's an upstream problem, no wonder. I am using 2.0.4 and the latest 2.0.5 also does not work. Downgrading to 2.0.1 solves the problem.

[ArminJo]

BTW, can you please test if 2.0.1 and 2.0.5 are working if you change the line 1122 in IRTimer.hpp from
#define TIMER_DISABLE_RECEIVE_INTR if (s50usTimer != NULL) {timerEnd(s50usTimer); timerDetachInterrupt(s50usTimer);}
to
#define TIMER_DISABLE_RECEIVE_INTR if (s50usTimer != NULL) {timerDetachInterrupt(s50usTimer);}
or
#define TIMER_DISABLE_RECEIVE_INTR if (s50usTimer != NULL) {timerAlarmDisable(s50usTimer);}
this could then be a stable fix to this problem.

[whc2001]

Seems like the second fix won't work on 2.0.1 but works on 2.0.5. The first fix would work on both 2.0.1 and 2.0.5.