Change motor speed

[weilin]

Please, be aware that .pressed() function uses callbacks and is only good for advanced coders. It is very easy to mess up with callbacks.

https://api.vexcode.cloud/v5/html/classvex_1_1controller_1_1button.html

If you decide to use .pressed() instead of much simpler .pressing() function, then you can find very helpful this mini-tutorial:

How do I use the controller button pressed command

yea, this is used when polling the button, it returns a boolean indicating if the button is currently pressed or not. Controller1.ButtonA.pressing() These are used when you want your code to be event based. Controller.ButtonA.pressed( callback_pressed ); Controller.ButtonA.released( callback_released ); A callback used an an event is running in its own thread, that means you can block using time consuming code or a while loop if you really want to, for example, this code using namespace…

Also, you may find this topic similar to what you are doing: How to change turn velocity by 5% with a button press - #6 by weilin