I couldn't fit the code into the original merry boxes and LED's  If you want to see the original blog ckick here -> Automatic christmas bell ringers.

 

The Arduino code.

 

#include <Servo.h>


/*********************************************************************
 *  Messages will all begin with Capital S
 *  Second byte will be board address  
 *  Third byte will be servo address   
 */
#define STX 'S' // Define the Ascii code for start of transmission


unsigned char Byte_In;
unsigned char Board = '1';
//unsigned char chan;


Servo Sv[6]; // Define number of servos


enum Comms_States{WAIT, REC_BOARD, REC_CHANNEL, REC_COMMAND};
enum Comms_States Comms_State;


void setup() {
  // put your setup code here, to run once:
 Serial.begin(9600); 
 pinMode(LED_BUILTIN, OUTPUT);
 Comms_State = WAIT;
 Sv[0].attach(3);  //Connect servo to port 3
 Sv[0].write(90);
 Sv[1].attach(5);  //Connect servo to port 5
 Sv[1].write(90);
 Sv[2].attach(6);  //Connect servo to port 6
 Sv[2].write(90);
 Sv[3].attach(9);  //Connect servo to port 9
 Sv[3].write(90);
 Sv[4].attach(10);  //Connect servo to port 6
 Sv[4].write(90);
 Sv[5].attach(11);  //Connect servo to port 9
 Sv[5].write(90);
}


void loop() {
  // put your main code here, to run repeatedly:
  // All I'm doing for now is reading the serial port
  Read_Serial();


}


void Read_Serial(void)  {
    if (Serial.available() > 0) {
    // read byte
      Byte_In = Serial.read();
      //        digitalWrite(LED_BUILTIN, HIGH);
        //    delay(100);
          //  digitalWrite(LED_BUILTIN, LOW);
            //delay(100);
      switch (Comms_State)
      {
        case WAIT:
          if (Byte_In == 'S')
          {
            Comms_State = REC_BOARD;  
            if(digitalRead(LED_BUILTIN) == LOW)             
              digitalWrite(LED_BUILTIN, HIGH);
            else
              digitalWrite(LED_BUILTIN, LOW);
            
          }
        break;
  
        case REC_BOARD:
          if (Byte_In == Board)
            Comms_State = REC_CHANNEL;
           else
            Comms_State = WAIT;
           break;
  
        case REC_CHANNEL:
          if (Byte_In == '1') {
             Sv[0].write(0);
            delay(100);
            Sv[0].write(90);
          }
          if (Byte_In == '2') {
             Sv[1].write(180);
            delay(100);
            Sv[1].write(90);
          }
          if (Byte_In == '3') {
             Sv[2].write(0);
            delay(100);
            Sv[2].write(90);
          }
           if (Byte_In == '4') {
             Sv[3].write(180);
            delay(100);
            Sv[3].write(90);
          }
           if (Byte_In == '5') {
             Sv[4].write(0);
            delay(100);
            Sv[4].write(90);
          }
           if (Byte_In == '6') {
             Sv[5].write(180);
            delay(100);
            Sv[5].write(90);
          }
            Comms_State = WAIT;
          break;
        default:
          Comms_State = WAIT;
          break; 
      }


    }


}

 

 

The Python code running on Win 10 using python 3.6

from datetime import datetime
from datetime import timedelta
import winsound
import serial


RS232 = serial.Serial('com5', 9600, timeout = 2)


# Set the frequency for each bell for testing
freq=[0, 1047, 1175, 1319, 1397, 1568, 1760, 1976, 2093]
start_time = datetime.now()




bpm = 110


time = [1,1,2,3,1,2,3,1,2,3,4,1,1,2,3,4,1,2,3,4,1,2,3,4,1,3,1,2,3,1,2,3,1,2,3,4,1,1,2,3,4,1,2,3,4,1,2,3,4,1,1,1,1,2,3,4,1,2,3,1,2,3,4,1,2,3,1,2,3,4,1,2,3,1,2,3,4,1,2,3,1,2,3,4,1,2,3,1,2,3,4,1,2,3,1,4]
bell = [1,3,3,3,3,3,3,3,5,1,2,3,4,4,4,4,4,3,3,3,3,2,2,3,2,5,3,3,3,3,3,3,3,5,1,2,3,4,4,4,4,4,3,3,3,5,5,4,2,1,8,8,1,1,5,5,6,6,5,4,4,3,3,2,2,1,5,5,4,4,3,3,2,5,5,4,4,3,3,2,1,1,5,5,6,6,5,4,4,3,3,2,2,1,8,1000]
board = [1,1,1,1,1,1,3,4,4]
channel = [3,6,1,4,2,5,1,2]


# Calculate the milliseconds
def millis():
    dt = datetime.now() - start_time
    ms = dt.seconds * 1000 + dt.microseconds /1000
   
    return ms


# Play a beep on PC to help with setting up the tunes
def Play_Bell(b):
   
    winsound.Beep(freq[b],75)
    return


# Send commands out to the serial port
def Send_Command(b):
    print ("servo",board[b-1],channel[b-1])
    RS232.write(b'S%d%d' %(board[b-1],channel[b-1]))
    return




# Main Program
# Work out how many miliseconds in a quarter bar
Quarter = 60/bpm*1000
#Set up variables
i=0
count = 1
old = -1


# as long as there is a valid bell number in the table play it. If not quit
while bell[i]<9:
    beat = millis()
    # If a beat  (Quarter of a bar has passed see if a bell needs to play)
    if beat > old:
        print (beat)
        if time[i] == count:
            Play_Bell(bell[i])
            Send_Command(bell[i])
            i=i+1
        count = count+1
        if count == 5:
            count = 1
        old += Quarter
       
# Release the RS232 port       
RS232.close()