While loops in MicroPython on Raspberry Pi Pico are used to execute a block of code repeatedly as long as a certain condition is true. The general syntax for a while loop is:
while condition:
# code to execute
The condition is checked at the beginning of each iteration. If the condition is true, the code inside the loop is executed. Once the code has been executed, the condition is checked again, and the loop continues until the condition is false.
Here’s an example of a simple while loop:
i = 0
while i < 5:
print(i)
i += 1
In this example, the loop will continue to execute as long as i is less than 5. Inside the loop, the current value of i is printed, and i is incremented by 1. The loop will continue until i reaches 5, at which point the condition i < 5 will be false, and the loop will terminate.
It’s important to make sure that the condition in a while loop will eventually become false, otherwise the loop will continue to execute indefinitely, which is known as an infinite loop. An infinite loop can cause your program to hang or crash, so it’s important to make sure that your loop will eventually terminate.
Here’s an example of an infinite loop:
i = 0
while i < 5:
print(i)
In this example, the condition i < 5 will always be true, since i is never incremented. This will cause the loop to continue to execute indefinitely, which is not what we want.
While loops can be useful for a variety of tasks, such as reading data from sensors, controlling motors, or performing other repetitive tasks. By using while loops, you can make your code more efficient and easier to read.
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