What is and how to use the REPL in MicroPython

The REPL (Serial Port) (Read-Eval-Print Loop) is a fundamental tool in MicroPython that allows us to interact directly with the board in real time.

The REPL (Serial Port) is an interactive environment that allows you to execute MicroPython commands directly on the board.

Basically, it allows us to communicate with the Python interpreter we have on the device, from outside of it, through serial communication.

Its name comes from the acronym Read-Eval-Print Loop, which describes its functioning:

Read (Leer): The REPL (Serial Port) reads the command you enter.
Eval (Evaluar): It evaluates the command and executes it.
Print (Imprimir): It shows the result of the execution.
Loop (Bucle): It repeats the process, allowing you to enter new commands.

The REPL (Serial Port) They are useful for running quick tests, debugging code, and exploring functionalities without the need to load complete programs.

In this article, we will see how it works, its main features, and how to make the most of it in project development with MicroPython.

Accessing the REPL (Serial Prt) in MicroPython

To access the REPL (Serial Port), you simply need to connect your device to your computer via a USB cable (that’s how easy it is!).

Then, you can use a terminal tool like Clu-Blocks Pro to establish communication with the board.