MicroPython • AP with multiple clients issue

Code:

import networkimport socketimport utimeserver_ip = '192.168.10.1'gateway_ip = '192.168.10.1'port = 5263ssid = 'Switch_LED'password = '2468013579'wlan = network.WLAN(network.AP_IF)wlan.active(True)wlan.config(essid=ssid, password=password)wlan.ifconfig((server_ip, '255.255.255.0', gateway_ip, '8.8.8.8'))server_sock = socket.socket()try:    server_sock.bind((server_ip, port))    server_sock.listen(15)    print(f'Server listening on {server_ip}:{port}')        while True:        client_sock, client_addr = server_sock.accept()        print(f'Client connected from {client_addr}')                # Handle client communication here        try:            data = client_sock.recv(1024)            if data:                print(f'Received data from {client_addr}: {data.decode()}')                # Get current time and format it                current_time = utime.localtime()                # Must set the time in message_to_send in this format!!!: hundredths, seconds, minutes, hours, date, month, year, day_of_week# Example: June 20, 2024, 20:20:45.50 (hundredths: 50), Thursday (day_of_week: 4). Week begins on Mon , not Sun!                                message_to_send = f"33 30 20 11 26 06 2024 4"                client_sock.send(message_to_send.encode())                print(f'Sent the following message to the client at {client_addr}: {message_to_send}')        except Exception as e:            print(f'Error processing client data: {e}')                # Close client socket        client_sock.close()        print(f'Client {client_addr} disconnected')        print(f'   ')except KeyboardInterrupt:    print('Server stopped by user')except Exception as e:    print(f'Error occurred: {e}')finally:    if server_sock:        server_sock.close()    wlan.active(False)

Code:

#RemoteSetTime-Client-A.pyimport networkimport socketimport timefrom machine import Pin, I2Cfrom rv1805 import RV1805  # Assuming you have the RV1805 RTC class implementedhost = '192.168.10.3'  # Assuming Device B's IP (must be unique in the subnet)serverAP = '192.168.10.1'gatewayAP = '192.168.10.1'port = 5263ssid = 'Switch_LED'pw = '2468013579'  # Password needs to be 8 characters or morewlan = network.WLAN(network.STA_IF)wlan.active(True)Onboard_LED = Pin("LED", Pin.OUT, value=0)# Initialize I2C interface with SCL on GPIO9 and SDA on GPIO8i2c = I2C(0, scl=Pin(9), sda=Pin(8))# Initialize RV1805 RTCrtc = RV1805(i2c)# Function to convert decimal to BCDdef dec_to_bcd(val):    return (val // 10) << 4 | (val % 10)# Function to convert BCD to decimaldef bcd_to_dec(val):    return (val >> 4) * 10 + (val & 0x0F)# Function to set time on RV1805def set_time(hund, sec, min, hour, date, month, year, day):    rtc.writeRegister(RV1805.RV1805_HUNDREDTHS, dec_to_bcd(hund))    rtc.writeRegister(RV1805.RV1805_SECONDS, dec_to_bcd(sec))    rtc.writeRegister(RV1805.RV1805_MINUTES, dec_to_bcd(min))    rtc.writeRegister(RV1805.RV1805_HOURS, dec_to_bcd(hour))    rtc.writeRegister(RV1805.RV1805_DATE, dec_to_bcd(date))    rtc.writeRegister(RV1805.RV1805_MONTHS, dec_to_bcd(month))    rtc.writeRegister(RV1805.RV1805_YEARS, dec_to_bcd(year))    rtc.writeRegister(RV1805.RV1805_WEEKDAYS, dec_to_bcd(day))        # Calculate day of the week (0 = Sunday, 6 = Saturday)    # Adjusted calculation to match desired input where 0=Sunday, 1=Monday, ..., 6=Saturday    day_of_week = (day + 6) % 7    # Define weekday names    weekdays = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"]    # Print the set time in a readable format    am_pm = "AM" if hour < 12 else "PM"    hour_12 = hour % 12    hour_12 = 12 if hour_12 == 0 else hour_12    print(f"The time has been set to {year:02}-{month:02}-{date:02} {hour_12:02}:{min:02}:{sec:02} {am_pm}")    print(f"Day of the week: {weekdays[day_of_week]}")# Function to check if AP (Switch_LED) is availabledef check_SSID():    print('Checking for Network:', ssid)    networks = wlan.scan()    found = False    for w in networks:        if w[0].decode() == ssid:            found = True    return found# Function to handle connection failuresdef connect_Fail(s):    errors = {        0: 'Link Down',        1: 'Link Join',        2: 'Link NoIP',        -1: 'Link Fail',        -2: 'NoNet',        -3: 'BadAuth'    }    error_msg = 'Connect Fail: ' + errors.get(s, 'Unknown')    print(error_msg)# Function to connect to the networkdef connect_to_network():    try:        if check_SSID():            print('Connecting to Network...')            wlan.active(True)            wlan.config(pm=0xa11140)  # Disable power-save mode            wlan.connect(ssid, pw)            while not wlan.isconnected():                time.sleep(1)            status = wlan.status()            if status == 3:                # Set IP address to the network we want, otherwise it uses 192.168.4.XXX                wlan.ifconfig((host, '255.255.255.0', gatewayAP, '8.8.8.8'))                status = wlan.ifconfig()                print('IP:', status[0])                return True            else:                connect_Fail(status)                print('Cannot connect...')                return False        else:            print('Network not found...')            return False    except Exception as e:        print('Error occurred:', e)        return False# Function to print current RTC datetimedef print_current_datetime():    hund = bcd_to_dec(rtc.readRegister(RV1805.RV1805_HUNDREDTHS))    sec = bcd_to_dec(rtc.readRegister(RV1805.RV1805_SECONDS))    min = bcd_to_dec(rtc.readRegister(RV1805.RV1805_MINUTES))    hour = bcd_to_dec(rtc.readRegister(RV1805.RV1805_HOURS))    date = bcd_to_dec(rtc.readRegister(RV1805.RV1805_DATE))    month = bcd_to_dec(rtc.readRegister(RV1805.RV1805_MONTHS))    year = bcd_to_dec(rtc.readRegister(RV1805.RV1805_YEARS))    day = bcd_to_dec(rtc.readRegister(RV1805.RV1805_WEEKDAYS))    # Calculate day of the week (0 = Sunday, 6 = Saturday)    # Adjusted calculation to match desired input where 0=Sunday, 1=Monday, ..., 6=Saturday    day_of_week = (day + 6) % 7    # Define weekday names    weekdays = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"]    # Print the current datetime in a readable format    am_pm = "AM" if hour < 12 else "PM"    hour_12 = hour % 12    hour_12 = 12 if hour_12 == 0 else hour_12    print(f"Current datetime: 20{year:02}-{month:02}-{date:02} {weekdays[day_of_week]}, {hour_12:02}:{min:02}:{sec:02}.{hund:02} {am_pm}")# Main program executionOnboard_LED.on()received_messages = []rtc_set = Falsetry:    if connect_to_network():        print('Ready')        while not rtc_set:            s = socket.socket()            try:                s.connect((serverAP, port))                print('Connected to AP')                s.send(b'Hello from Client A!')                response = s.recv(1024)                message = response.decode()                print('Received the following date and time from the AP:', message)                received_messages.append(message)                                # Set RTC time from received data                hund, sec, min, hour, date, month, year, day_of_week = message.split()                set_time(int(hund), int(sec), int(min), int(hour), int(date), int(month), int(year), int(day_of_week))                                # Set flag to indicate RTC time is set                rtc_set = True            except OSError as e:                print('Socket error:', e)            finally:                s.close()                #time.sleep(2)  # Adjust timing as needed        # Print current RTC time every 2 seconds        while True:            print_current_datetime()            time.sleep(15)except Exception as e:    print('Error occurred:', e)finally:    wlan.disconnect()    wlan.active(False)    print('Disconnected from Network.')    Onboard_LED.off()print('All received messages:', received_messages)

Code:

#RemoteSetTime-Client-B.pyimport networkimport socketimport timefrom machine import Pin, I2Cfrom rv1805 import RV1805  # Assuming you have the RV1805 RTC class implementedhost = '192.168.10.4'  # Assuming Device B's IP (must be unique in the subnet)serverAP = '192.168.10.1'gatewayAP = '192.168.10.1'port = 5263ssid = 'Switch_LED'pw = '2468013579'  # Password needs to be 8 characters or morewlan = network.WLAN(network.STA_IF)wlan.active(True)Onboard_LED = Pin("LED", Pin.OUT, value=0)# Initialize I2C interface with SCL on GPIO9 and SDA on GPIO8i2c = I2C(0, scl=Pin(9), sda=Pin(8))# Initialize RV1805 RTCrtc = RV1805(i2c)# Function to convert decimal to BCDdef dec_to_bcd(val):    return (val // 10) << 4 | (val % 10)# Function to convert BCD to decimaldef bcd_to_dec(val):    return (val >> 4) * 10 + (val & 0x0F)# Function to set time on RV1805def set_time(hund, sec, min, hour, date, month, year, day):    rtc.writeRegister(RV1805.RV1805_HUNDREDTHS, dec_to_bcd(hund))    rtc.writeRegister(RV1805.RV1805_SECONDS, dec_to_bcd(sec))    rtc.writeRegister(RV1805.RV1805_MINUTES, dec_to_bcd(min))    rtc.writeRegister(RV1805.RV1805_HOURS, dec_to_bcd(hour))    rtc.writeRegister(RV1805.RV1805_DATE, dec_to_bcd(date))    rtc.writeRegister(RV1805.RV1805_MONTHS, dec_to_bcd(month))    rtc.writeRegister(RV1805.RV1805_YEARS, dec_to_bcd(year))    rtc.writeRegister(RV1805.RV1805_WEEKDAYS, dec_to_bcd(day))        # Calculate day of the week (0 = Sunday, 6 = Saturday)    # Adjusted calculation to match desired input where 0=Sunday, 1=Monday, ..., 6=Saturday    day_of_week = (day + 6) % 7    # Define weekday names    weekdays = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"]    # Print the set time in a readable format    am_pm = "AM" if hour < 12 else "PM"    hour_12 = hour % 12    hour_12 = 12 if hour_12 == 0 else hour_12    print(f"The time has been set to {year:02}-{month:02}-{date:02} {hour_12:02}:{min:02}:{sec:02} {am_pm}")    print(f"Day of the week: {weekdays[day_of_week]}")# Function to check if AP (Switch_LED) is availabledef check_SSID():    print('Checking for Network:', ssid)    networks = wlan.scan()    found = False    for w in networks:        if w[0].decode() == ssid:            found = True    return found# Function to handle connection failuresdef connect_Fail(s):    errors = {        0: 'Link Down',        1: 'Link Join',        2: 'Link NoIP',        -1: 'Link Fail',        -2: 'NoNet',        -3: 'BadAuth'    }    error_msg = 'Connect Fail: ' + errors.get(s, 'Unknown')    print(error_msg)# Function to connect to the networkdef connect_to_network():    try:        if check_SSID():            print('Connecting to Network...')            wlan.active(True)            wlan.config(pm=0xa11140)  # Disable power-save mode            wlan.connect(ssid, pw)            while not wlan.isconnected():                time.sleep(1)            status = wlan.status()            if status == 3:                # Set IP address to the network we want, otherwise it uses 192.168.4.XXX                wlan.ifconfig((host, '255.255.255.0', gatewayAP, '8.8.8.8'))                status = wlan.ifconfig()                print('IP:', status[0])                return True            else:                connect_Fail(status)                print('Cannot connect...')                return False        else:            print('Network not found...')            return False    except Exception as e:        print('Error occurred:', e)        return False# Function to print current RTC datetimedef print_current_datetime():    hund = bcd_to_dec(rtc.readRegister(RV1805.RV1805_HUNDREDTHS))    sec = bcd_to_dec(rtc.readRegister(RV1805.RV1805_SECONDS))    min = bcd_to_dec(rtc.readRegister(RV1805.RV1805_MINUTES))    hour = bcd_to_dec(rtc.readRegister(RV1805.RV1805_HOURS))    date = bcd_to_dec(rtc.readRegister(RV1805.RV1805_DATE))    month = bcd_to_dec(rtc.readRegister(RV1805.RV1805_MONTHS))    year = bcd_to_dec(rtc.readRegister(RV1805.RV1805_YEARS))    day = bcd_to_dec(rtc.readRegister(RV1805.RV1805_WEEKDAYS))    # Calculate day of the week (0 = Sunday, 6 = Saturday)    # Adjusted calculation to match desired input where 0=Sunday, 1=Monday, ..., 6=Saturday    day_of_week = (day + 6) % 7    # Define weekday names    weekdays = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"]    # Print the current datetime in a readable format    am_pm = "AM" if hour < 12 else "PM"    hour_12 = hour % 12    hour_12 = 12 if hour_12 == 0 else hour_12    print(f"Current datetime: 20{year:02}-{month:02}-{date:02} {weekdays[day_of_week]}, {hour_12:02}:{min:02}:{sec:02}.{hund:02} {am_pm}")# Main program executionOnboard_LED.on()received_messages = []rtc_set = Falsetry:    if connect_to_network():        print('Ready')        while not rtc_set:            s = socket.socket()            try:                s.connect((serverAP, port))                print('Connected to AP')                s.send(b'Hello from Client B!')                response = s.recv(1024)                message = response.decode()                print('Received the following date and time from the AP:', message)                received_messages.append(message)                                # Set RTC time from received data                hund, sec, min, hour, date, month, year, day_of_week = message.split()                set_time(int(hund), int(sec), int(min), int(hour), int(date), int(month), int(year), int(day_of_week))                                # Set flag to indicate RTC time is set                rtc_set = True            except OSError as e:                print('Socket error:', e)            finally:                s.close()                time.sleep(2)  # Adjust timing as needed        # Print current RTC time every 2 seconds        while True:            print_current_datetime()            time.sleep(2)except Exception as e:    print('Error occurred:', e)finally:    wlan.disconnect()    wlan.active(False)    print('Disconnected from Network.')    Onboard_LED.off()print('All received messages:', received_messages)