# Example user class that can be used as an interface between the computer and

# the state machine running on the pyboard.

# This class can respond to states, events, prints, variable changes, and analog data

# This file will be running on your desktop computer and can therefore be used

# for heavy processing or to interact with programs outside of PyControl GUI using

# whatever Python libraries you'd like.

import random

from source.gui.api import Api

# This class should be have the same name as the file and inherit the API class

# look at gui/api.py to see what functions can be redefined and called

class Example_user_class(Api):

def __init__(self):

self.off_count = 0

# this runs at the start of sessoin

def run_start(self):

self.print_to_log("\nYou can print directly to the log from user class")

# use this function

def process_data_user(self, data):

# check if state changed to LED_off

LED_off_happened = [state.name == "LED_off" for state in data["states"]]

if LED_off_happened:

self.off_count += 1

new_duration = random.triangular(0.1, 1, 5.5)

self.set_variable("LED_duration", round(new_duration, 3))

if self.off_count % 4 == 0:

self.trigger_event("event_a")

# check for print message from task

msgs_from_task = [printed.data.split("=")[1] for printed in data["prints"] if "vals_from_task=" in printed.data]

for msg in msgs_from_task:

x, y, z = msg.split(",")

total = int(x) + int(y) + int(z)

self.print_message("{} and {} and {} total to {}".format(x, y, z, total))

def run_start(self):

self.print_to_log("\nMessage from config/user_classes/Example_user_class.py at the start of the run")

def run_stop(self):

self.print_to_log("\nMessage from config/user_classes/Example_user_class.py at the end of the run")