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175 lines
7.9 KiB
Python
175 lines
7.9 KiB
Python
# read the values from ESP32 and call functions to generate ps-file:
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import serial # import serial library to read the values from ESP32 via serial (RX) connection
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import os # library to use bash commands
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#LED connect to GND and pin 23
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import RPi.GPIO as GPIO # GPIO pins
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import time
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import logging
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#logging gives information for debugging purposes
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logging.getLogger().setLevel(5)
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from print_button import print_button
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from preview_button import preview_button
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from friction_label import friction_label
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from future_relics import future_relics
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from weaver import weaver
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from whoosh import whoosh
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from dynamic_glyph import dynamic_glyph
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from print_or_preview import preview_output, print_output
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function_index = {
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"FL": friction_label,
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"FR": future_relics,
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"WV": weaver,
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"WH": whoosh,
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"DG": dynamic_glyph
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}
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module_index = {
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"FL": "friction_label",
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"FR": "future_relics",
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"WV": "weaver",
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"WH": "whoosh",
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"DG": "dynamic_glyph"
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}
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#LED
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GPIO.setmode(GPIO.BOARD) #Use the physical board number (not GPIO numbering)
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GPIO.setup(23, GPIO.OUT, initial=GPIO.LOW) # Set pin 23 to be an output pin and set initial value to low (off)
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GPIO.setwarnings(False) #Ignore warnings
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preview_button_count = 0
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if __name__ == '__main__':
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ser = serial.Serial('/dev/ttyS0', 9600, timeout=0.1) # establish a serial connection using Serial Pi Zero (S0), using the RX pin
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ser.reset_input_buffer()
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try:
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while True:
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#for some reason the whole ED setup has to be repeated here:
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GPIO.setmode(GPIO.BOARD) #Use the physical board number (not GPIO numbering
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GPIO.setup(23, GPIO.OUT, initial=GPIO.LOW) # Set pin 23 to be an output pin and set initial value to low (off)
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GPIO.output(23, GPIO.LOW)
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if ser.in_waiting > 0:
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print(ser.in_waiting)
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#the longer serial data is received, the bigger the data in the buffer
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#set a max amount of buffer data, then reset the buffer:
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if ser.in_waiting > 400:
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ser.reset_input_buffer()
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GPIO.output(23, GPIO.HIGH) # Turn on while serial data is incoming
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line = ser.readline() # reads bytes
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class theEnd(Exception): pass #defines an exception for the following try (in case, it is executed at the end).
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try:
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line = line.decode("utf-8", 'ignore').rstrip() # converts bytes to string
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line = line.replace("\r\n", "") # replaces "\r\n" (end of line) with nothing
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line = line.replace("\r", "") # replaces "\r" (between two modules) with nothing
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#print(line)
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if not line.startswith("&&&") and not line.endswith("&&&"): # break when line of data is not complete
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#print(line)
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#print("break")
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break
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line = line.replace("&&&", "") # delete all &&&
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line = line.split("#") # splits the line into a list of lists
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# after this split the list begins with an empty list, so delete it:
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if line[0] == "": #if first list in lists is empty:
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del line[0] #delete the first element
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# print(line)
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modules = []
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for module in line:
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values = module.split(",") # splits each module into values
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modules.append(values)
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print("These are the values of all connected modules ")
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print(modules)
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#for each module: check if all values are being received, if not jump to theEnd execption at the end of this code
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for module in modules:
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if module[0] == "FL" and len(module) != 9:
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raise theEnd
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if module[0] == "FR" and len(module) != 6:
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raise theEnd
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if module[0] == "WV" and len(module) != 6:
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raise theEnd
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if module[0] == "WH" and len(module) != 10:
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raise theEnd
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if module[0] == "DG" and len(module) != 2:
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raise theEnd
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#ser.reset_input_buffer()
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if preview_button() == True:
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#increase the preview button count to know if it is a preview start or a preview refresh
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preview_button_count = preview_button_count + 1
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previous_module = "" #define previous_module as non-existent
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for module in modules: #for each module inside the list of modules
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if module[0] not in module_index: #this if break is added to avoid the script from breaking at the start (which happens when serial is not yet receiving all values, but only fragments)
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# print("break")
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break # break and start the for loop again
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current_module = module_index[module[0]] #save the name of the current module, use module_index to replace abbr. with full nam
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function_index[module[0]](previous_module, current_module, module) #use function_index to run functions for each module #example: weaver(previous_module, current_module, module)
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previous_module = current_module #previous_module is now redefined, bacause current_module becomes previous_module
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if module == modules[-1]: #if module is the last module in list of modules
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last_module = current_module
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preview_output(preview_button_count, last_module) #call preview function
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#delete text from text file that was written by dynamic glyph module
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open('dynamic_glyph.txt', 'w').close()
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if print_button() == True:
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previous_module = "" #define previous_module as non-existent
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for module in modules: #for each module inside the list of modules
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if module[0] not in module_index: #this if break is added to avoid the script from breaking at the start (which happens when serial is not yet receiving all values, but only fragments)
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# print("break")
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break # break and start the for loop again
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current_module = module_index[module[0]] #save the name of the current module, use module_index to replace abbr. with full name
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function_index[module[0]](previous_module, current_module, module) #use function_index to run functions for each module #example: weaver(previous_module, current_module, module)
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previous_module = current_module #previous_module is now redefined, bacause current_module becomes previous_module
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if module == modules[-1]: #if module is the last module in list of modules
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last_module = current_module #define current_module as last module to know what file to send to the preview/printer
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print_output(last_module) #call print function
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#delete text from text file that was written by dynamic glyph module
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open('dynamic_glyph.txt', 'w').close()
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#ser.flush()
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except theEnd:
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print("error reading") #prints error if serial does not receive all values of each module
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except OSError as e:
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print("Error: could not decode bytes")
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print(e)
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#ser.flush()
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except KeyboardInterrupt: #is the script is interrupted, turn the LED off
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GPIO.output(23, GPIO.LOW)
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# finally:
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# GPIO.cleanup()
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