Thx so much for your help!!!
I inserted Serial.flush(); after line 51.
You were right, the name shows up again.
Then the inactivity notification popped up every 10.1 seconds again (I guess the 0.1 comes from me pushing the stop watch button).
I than reactivated lines 122 and 125.
Current status is now, that the prog name is displayed, and nothing else. Only the name, no going to sleep or whats so ever.
Due to lines 140 to 144 I would have estimated to see at least the acceleration values for the first ten seconds. But - I don't. Can you also explain why?
SparkFun_ADXL345_Example_wakeup_interrupt_v003.ino (8.01 KB)