This function in an Arduino would cause it to stop execution and keep displaying the message every second forever. # that the internal led blinks every half secondĪs you can see, we have created a function called second_thread, which is a while loop that blocks execution forever. # Second loop that will block the main thread, and what it will do _thread.start_new_thread(second_thread, ()) # The second argument is a list or dictionary with the arguments # Function that initializes execution in the second core Print('Hello, I'm here in the second thread writting every second') # which will simply display a message every second # Function that will block the thread with a while loop # We configure the pin of the internal led as an output and In the following example you can easily see what it would be like. To perform multithreading, the first thing you have to do is create the function that will be executed in the other core. I know this example is simple and you would waste the power of the Raspberry Pi Pico, but it is an easy example 😛 Execute function in another core To take a rough example, you can have a core reading a sensor continuously, and in parallel the other acting depending on the data received by that sensor. To begin with, I will tell you not to be scared, because the operation is quite simple and it will serve you for many things. Obviously, the Raspberry Pi Pico does not have an operating system that manages the CPU cycles and therefore will only allow one thread per core, which in this case is two. If you don’t know what multithreaded execution is, I’ll tell you what your computer does and what allows you to have several programs open at the same time. One of the interesting things about the Raspberry Pi Pico is that it has two cores, which will allow us to perform multithreaded executions.

Install pthread c raspberry pi