Multithreading on Microcontrollers with Zerynth

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# Multi-Thread Basics
#
# Created by Zerynth Team 2015 CC
# Authors: G. Baldi, D. Mazzei
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import streams

# create a serial port with default parameters
streams.serial()

# Define a function to be used in the various threads.
# Parameters are passed to the function when the thread is created and then used in the thread loop.
# To be continuously executed by a thread a function requires an infinite loop,
# otherwise when the function terminates the thread is closed
     
def threadfn(number,delay):    
    
    while True:                    
        print("I am the thread",number)
        print("I run every:",delay,"msec")
        print()                # just add an empty line for console output readability 
        sleep(delay)

# create the various threads using the same function but passing different parameters        
thread(threadfn,1,500)
thread(threadfn,2,1000)
thread(threadfn,3,1300)
thread(threadfn,4,800)