gistfile1.txt

from machine import Pin, Timer
import network
import urequests
import time

TIMEOUT = 10000

morse_code = {
    '.-': 'A', '-...': 'B', '-.-.': 'C', '-..': 'D', '.': 'E', '..-.': 'F',
    '--.': 'G', '....': 'H', '..': 'I', '.---': 'J', '-.-': 'K', '.-..': 'L',
    '--': 'M', '-.': 'N', '---': 'O', '.--.': 'P', '--.-': 'Q', '.-.': 'R',
    '...': 'S', '-': 'T', '..-': 'U', '...-': 'V', '.--': 'W', '-..-': 'X',
    '-.--': 'Y', '--..': 'Z'
}

class MorseCodeTranslator:
    def __init__(self):
        self.button = Pin(2, Pin.IN, Pin.PULL_UP)
        self.button.irq(trigger=Pin.IRQ_FALLING | Pin.IRQ_RISING, handler=self.button_callback)
        
        self.start_time = 0
        self.current_sequence = ''
        self.current_letter = ''
        self.is_pressing = False
        self.last_activity_time = time.ticks_ms()
        
        self.timer = Timer(-1)
        self.space_timer = Timer(-1)
        self.timeout_timer = Timer(-1)
        
        self.start_timeout_timer()

    def button_callback(self, pin):
        self.timer.init(mode=Timer.ONE_SHOT, period=5, callback=self.debounced_callback)

    def debounced_callback(self, timer):
        self.last_activity_time = time.ticks_ms()
        self.restart_timeout_timer()
        
        if self.button.value() == 0:  # Button pressed
            if not self.is_pressing:
                self.start_time = time.ticks_ms()
                self.is_pressing = True
                self.space_timer.deinit()  # Cancel any pending space insertion
        else:  # Button released
            if self.is_pressing:
                duration = time.ticks_diff(time.ticks_ms(), self.start_time)
                self.current_letter += '-' if duration > 150 else '.'
                self.is_pressing = False
                self.timer.init(mode=Timer.ONE_SHOT, period=500, callback=self.process_input)
                self.space_timer.init(mode=Timer.ONE_SHOT, period=1500, callback=self.insert_space)

    def process_input(self, timer):
        if self.current_letter:
            if self.current_letter in morse_code:
                decoded_letter = morse_code[self.current_letter]
                self.current_sequence += decoded_letter
                print(decoded_letter, end='')
            self.current_letter = ''

    def insert_space(self, timer):
        if self.current_sequence and self.current_sequence[-1] != ' ':
            self.current_sequence += ' '
            print(' ', end='')

    def start_timeout_timer(self):
        self.timeout_timer.init(mode=Timer.PERIODIC, period=1000, callback=self.check_timeout)

    def restart_timeout_timer(self):
        self.timeout_timer.deinit()
        self.start_timeout_timer()

    def check_timeout(self, timer):
        if time.ticks_diff(time.ticks_ms(), self.last_activity_time) > TIMEOUT:
            try:
                if self.current_sequence:
                    postit(self.current_sequence)
            except:
                print("uh oh, didn't post")
            self.current_sequence = ''
            self.last_activity_time = time.ticks_ms()

def postit(message):
    print(f"sending: {message}")
    urequests.post("https://3e.org/morserecv.php", json={"message": message})


print("Connecting to wifi", end="")
wlan = network.WLAN(network.STA_IF)
wlan.active(True)
wlan.connect("Wokwi-GUEST", "")
while not wlan.isconnected():
    print(".", end="")
    time.sleep(0.1)
print(" Connected!")

morse_translator = MorseCodeTranslator()
while True:
    time.sleep(1)