I made a 328P-PU Arduino compatible minimal board based on your super tutorial http://www.gammon.com.au/forum/?id=11637
I uploaded: - "board detector" sketch - bootloader programming sketch (8 MHz without a crystal) Everything went well and I finally loaded up the basic Blink example
... digitalWrite(led, HIGH); // turn the LED on (HIGH is the voltage level) delay(2000); // wait for 2 seconds digitalWrite(led, LOW); // turn the LED off by making the voltage LOW delay(2000); // wait for 2 seconds ...
The LED turn ON for 4 seconds and OFF for 4 seconds What am I doing wrong ?? Is it related to the 8 MHz clock ??
Thanks for your assistance