TimedCommand accept only "*"

[ITGrapes-Hedi]

Hey everyone , I tried to create many different cron string example "15....." using TimedCommand but it didn't work unlessthis one ".....*"

[punkle]

Hi @ITGrapes-Hedi. I have not got an RTC board to hand. I am ordering one.

Could you confirm that you do in fact have an RTC device attached to the arduino when you are running the library?

[ITGrapes-Hedi]

Hi @punkle , i'm using a DS1307 real time clock module , attached to the arduino.