Upload mode is one of the two modes you can write your programs in Pictoblox. This mode allows you to write scripts and upload it to the board so that you can use even when it is not connected your computer, for example, you need to upload a script for making moving robots.
In this case, evive will run offline according to the program and it can not interact with the stage.
You can toggle between the upload mode and stage mode using the button on the top right side of Pictoblox.
In this example, we want to turn on an LED whenever you press tactile switch 1 of evive. This program will work on evive without Pictoblox once uploaded in evive.