morseanalyser/main.py

#   morse code analyser
from PicoAirQuality import  KitronikBME688, KitronikButton, KitronikDataLogger, \
                            KitronikOLED, KitronikRTC, KitronikZIPLEDs,\
                            KitronikBuzzer
import time

#from datetime import datetime

logFileName = "atmosphere_log.txt"
mindex=0
morse = []
bme688 = KitronikBME688()
oled = KitronikOLED()
rtc = KitronikRTC()
zipleds = KitronikZIPLEDs(3)
# Python u arse hole sec = Integer()
rtc.setDate(16, 7, 2022)
rtc.setTime(12, 10, 0)

bme688.setupGasSensor()
bme688.calcBaselines()
sec = 0
#f = open(logFileName, 'a')
#f.write("# Data Logging: Date, Time, Temperature, Pressure, Humidity, AirQuality, CO2\n")

beeper  = KitronikBuzzer()
buttons = KitronikButton()
last_pv = 0
last_tt = 0
spurious = 0 # interrupts are often repeated for the low level

# make this array size 20. A morse char of 5 dots|dashes
# would take up 10 slots max.
#

    
class buttonEvent:
    #mstimestamp = 0
    #pinstate = 0
    def __init__(self, mststamp, pinst):
        buttonEvent.mstimestamp = mststamp
        buttonEvent.pinstate = pinst
    #def str(self):
        #return "mstimestamp:",str(mstimestamp), "pinst ",str(pinstate)
    
 
#def ButtonB_r_IRQHandler(pin):
#    global buttonB
#    buttonB = 2*60 
#    print("button B pressed", buttonB)
    
def ButtonB_f_IRQHandler(pin):
    global last_pv, last_tt, spurious, mindex
    pv = pin.value()
    tt  = time.ticks_ms()
    #print("button B IRQ", tt, pv)
    if last_pv ==   pv  : # get get spurious 0 level ints
        #print("two   ints @ same level in a row",pv) # ignore
        spurious += 1
    else:
        #b=buttonEvent(time.ticks_ms(),pv)
        d = tt - last_tt
        if pv:
            #print(" duration of inter-m space ", d)
            if d < 600:
                print (" ")
            else:
                print (" interval ")
                mindex += 1;
            beeper.playTone(600)
        else:
            #print(" duration of press ", d)
            if d > 300:
                morse.append("-");
                print ("DAH")
            else:
                morse.append(".");
                print ("DIT")
            beeper.stopTone()
    last_pv = pv
    last_tt = tt
        

# FALLING DOES NOT WORK AND IRQ_LOW_LEVEL not recognised
buttons.buttonB.irq(trigger=machine.Pin.IRQ_FALLING|machine.Pin.IRQ_RISING, handler=ButtonB_f_IRQHandler)
#buttons.buttonB.irq(trigger=machine.Pin.IRQ_RISING, handler=ButtonB_r_IRQHandler)

def decode_morse():
    global morse
    dm_a = [".","-"]
    dm_b = ["-",".",".","."]
    dm_e = ["."]
    dm_i = [".","."]
    dm_s = [".",".","."]
    if morse == dm_e:
        print ("E")
    if morse == dm_a:
        print ("A")
    if morse == dm_i:
        print ("I")
    if morse == dm_s:
        print ("S")      
        
        
        
def process_morse():
    global last_tt, morse
    tt  = time.ticks_ms()
    if (tt - last_tt) > 600:
        # morse chacter complete
        if (len(morse) > 0):
            print(morse)
            decode_morse()
            morse = []
    oled.clear()
    oled.displayText(rtc.readDateString(), 1, 25)
    oled.displayText(rtc.readTimeString(), 2, 33)
    #oled.displayText(str(mcount), 4, 33)
    oled.show()
   
    
    
while True:
    # maybe a function can have a global ref, yeah maybe the main cont. another wanky aspect ogf pythion
    process_morse()
    ##process_morse2()
    #time.sleep(1.0)