The Arduino IDE will show you the current settings for board at the bottom of the window.
If you get this, go back to Lesson 0 and check your installation.
Once the upload has completed, the board should restart and start blinking.
This guide was first published on Nov 28, 2012. It was last updated on Nov 28, 2012.
This page (Uploading Blink to the Board) was last updated on Jan 23, 2021.