Loops

Setup

Everything in the setup block will run once when the program starts. The setup block runs before the forever block.

Behind the scenes, the setup block defines the setup() function.

Forever

Everything in the forever block will run forever. This is an infinite loop.

Behind the scenes, the forever block defines the loop() function.

Repeat

The repeat block will run the blocks inside it a certain number of times. You decide how many times it will repeat.

Repeat while/until

This block creates a loop that will run based on the value of a condition.

• while: The loop will continue to run as long as the condition is true.
• until: The loop will continue to run until the condition is true.

Condition

• The condition must be a true or false (boolean) value.
• It can be a comparison, a variable, or a boolean block.
• The condition is checked before each iteration of the loop.

For loop

The for block is a more advanced loop that introduces a counter variable that you can use inside the loop.

• Variable: The variable that will be used as the counter. You can use this variable inside the loop.
• From: The starting value of the counter.
• To: The ending value of the counter.
• By: The amount the counter will increase by each iteration. This can be a negative number to count down.

Control flow

The loop control flow block allows you to exit a loop early or skip an iteration.

• break out: Exits the loop immediately.
• continue with next iteration: Skips any remaining blocks in the loop and starts the next iteration.

This block will not work in the setup or forever blocks.