Cabezal de impresión térmica para un sistema de gestión de aparcamientos basado en Raspberry Pi pico y HMI

Materiales a utilizar

1、PIEDRA STWI101WT-01

2、Cabeza de impresora térmica FTP

3、Raspberry Pi pico

4、Máquina de monedas

Función

La función de control se muestra en la pantalla de serie, la interfaz principal selecciona el piso, después de entrar en la interfaz principal selecciona la plaza de aparcamiento, al mismo tiempo se mostrará el número de plaza de aparcamiento en el cuadro de texto en la parte superior derecha, a continuación, selecciona el tiempo de estancia, es dos selectores de texto de desplazamiento, entonces también el mismo mostrará la información de la orden en el cuadro de texto en la parte superior derecha, de acuerdo con el precio unitario fijo que se multiplica con el tiempo de estancia para obtener el precio total. Entonces, sólo cuando la plaza de aparcamiento y el tiempo de estancia están seleccionados, se puede ir al botón de pago, de lo contrario no es válido. Después de entrar en la pantalla de pago, se utilizará un monedero. A continuación, la pantalla mostrará el número de monedas que hay que introducir y el número de monedas ya introducidas. Una vez introducidas las monedas, se mostrará un mensaje de éxito en el pago. A continuación, puede elegir imprimir un pequeño ticket para imprimir el número de plaza y la hora en el papel térmico.

Circuito

He diseñado un circuito por mí mismo para manejar muchos componentes, y el diagrama general del circuito es así, la esquina superior izquierda es la toma de comunicación y la toma de alimentación, abajo hay un zumbador (no se utiliza realmente en el circuito), hay un diodo emisor de luz a la derecha, y la esquina inferior derecha es un fpc de 30 pines para conectar el cabezal de impresión.


parking-management-system(6).jpg
Code

Python:
from machine import UART,Pin

from time import sleep

import _thread

import rp2

from array import array

import ascii_ku

import speed_motor

from os import uname

#import sys

uart1 = UART(0, baudrate = 115200, tx =Pin(0), rx = Pin(1))

floor1 = ['f', 'l', 'o', 'o', 'r','1']

floor2 = ['f', 'l', 'o', 'o', 'r','2']

floor3 = ['f', 'l', 'o', 'o', 'r','3']

button_cmd = [16,1]

selector_cmd = [16,129]

 

print(uname()[0])

delaytime = 0.0000001 # Printer clock delay

 

coin = Pin(22, Pin.IN,Pin.PULL_UP)

coin_num = 0

 

motor = speed_motor.motor_control(2, 3, 4, 5) # Initialize the printer's internal stepper motor pins, corresponding to the a+/a-/b+/b- of the stepper motor

mov_bit = 0

 

PRINTER_DIN = Pin(20, Pin.OUT)

PRINTER_CLK = Pin(19, Pin.OUT)

PRINTER_LAT = Pin(18, Pin.OUT, Pin.PULL_UP)

 

STB1 = Pin(6, Pin.OUT, Pin.PULL_DOWN)

STB2 = Pin(7, Pin.OUT, Pin.PULL_DOWN)

STB3 = Pin(8, Pin.OUT, Pin.PULL_DOWN)

STB4 = Pin(9, Pin.OUT, Pin.PULL_DOWN)

STB5 = Pin(14, Pin.OUT, Pin.PULL_DOWN)

STB6 = Pin(15, Pin.OUT, Pin.PULL_DOWN)

 

lock = _thread.allocate_lock()

 

ascii_code = ascii_ku.ascii_code() # Importing an ascii character library

 

# shuru = 'aa'

# line_word = []

# for item in range(len(shuru)):

#     line_word.append(shuru[item])

# line_num = len(shuru)

# bottom_line_num = len(shuru)%

# global motor_speed = 0

# global line = 0

 

# if len(shuru) > 6:

#     motor_speed = len(shuru) % 6

#     if (len(shuru) % 6) == 0:

#         motor_speed = 12

# else:

#     motor_speed = len(shuru)

# # print(motor_speed)

#

# line = (len(shuru) // 12) + 1

# if (len(shuru) % 12) == 0:

#     line -= 1

lins = 0

supper = 0

slower = 0

 

danjia = 0

# _thread.start_new_thread(motor.run_stop, (0.005*motor_speed, 26*line))

# _thread.start_new_thread(motor.run_stop, (motor_speed, line))

# _thread.start_new_thread(motor.run_stop, (0.03, 56))

def pay(pay):

    global coin_num

    line_word = {'line_word1':['s','i','t','e',':','F','1','-','0'],'line_word2':['0','d','a','y','2','h','o','u','r'],'line_word3':['t','o','t','a','l',':','4','.','0'],'line_word4':['T','o','t','a','l',':','4','.','0']}

    line_wors = {'line_word1':['U','n','i','t',':','2','.','0','0'],'line_word2':['T','o','t','a','l',':','4','.','0'],

                 'line_word3':['U','n','i','t',':','2','.','0','0'],'line_word4':['T','o','t','a','l',':','5','.','0']}

#     line_word1 = ['S','i','t','e',':','F','1','-','0']

#     line_word2 = ['1','D','a','y','1','H','o','u','r']

#     line_word3 = ['U','n','i','t',':','2','.','0','0']

#     line_word4 = ['T','o','t','a','l',':','5','.','0']

#     line_word1[8]=str(pay[0])

#     line_word2[0]=str(pay[1])

#     line_word2[4]=str(pay[2])

#     line_word4[6]=str(pay[3])

    (line_word['line_word1'])[8]=str(pay[0])

#     (line_word['line_word2'])[0]=str(pay[1])

#     (line_word['line_word2'])[4]=str(pay[2])

#     (line_word['line_word4'])[6]=str(pay[3])

    sleep(1)

    uart1.write('ST<{"cmd_code":"set_value","type":"image_value","widget":"image_value4","value":'+str(pay[3])+'}>ET')

#     sleep(2)

#     print(line_word.get('line_word'+str(1))[0])

#     print('zfdszfz',line_word)

#     sleep(2)

#     uart1.write('ST<{"cmd_code":"set_text","type":"edit","widget":"message5","text":"F1 - '+pay[0]+'"}>ET')

#     uart1.sendbreak()

#     sleep(1)

#     uart1.write('ST<{"cmd_code":"set_text","type":"edit","widget":"message6","text":"'+str(pay[1])+'"}>ET')

#     uart1.sendbreak()

#     sleep(1)

# #     uart1.write('ST<{"cmd_code":"set_text","type":"edit","widget":"message22","text":"'+str(pay[2])+'"}>ET')

#     uart1.write('ST<{"cmd_code":"set_text","type":"edit","widget":"message8","text":"'+str(pay[3])+'"}>ET')

    while True:

        if coin.value()==0:

            coin_num += 1

            print("Number of coins deposited:",coin_num)

            sleep(0.1)

            uart1.write('ST<{"cmd_code":"set_value","type":"image_value","widget":"image_value2","value":'+str(coin_num)+'}>ET')

            if coin_num == pay[3]:

                uart1.write('ST<{"cmd_code":"set_visible","type":"widget","widget":"image37","visible":true}>ET')

                

                

        if uart1.any()>1:

            rx2 = []

            data_name2 = ''

            bin_data = uart1.read(40)

            uart1.sendbreak()

            rx1 = list(bin_data)

            for item in rx1:

                rx2.append(chr(item))

            print(rx2)

            if rx1[3:5:1] == button_cmd:

                data_name_len = rx1[6] - 1

                data_name = rx2[7:data_name_len+6:1]

                data_name2 = ''.join(data_name)

                print(data_name2)

                if data_name2 == 'back':

                    break

                elif data_name2 == 'print' and coin_num == pay[3] and rx1[13] == 2:

                    data_name2=''

                    _thread.start_new_thread(motor.run_stop, (9, 4))

                    for iii in range(1,3):

                        for linss in range(32):

                            supper=slower=0

                            for lins in range(9):

#                                 temp_list=ascii_code.code.get(('line_word'+str(iii))[lins])

#                                 print(temp_list,type(temp_list))

                                if (line_word.get('line_word'+str(iii))[lins]).islower():

                                    word_size24 (ascii_code.code.get(line_word.get('line_word'+str(iii))[lins]), linss%32, lins%12, supper, slower)

                                    slower += 1

                                else:

                                    last_word_size32 (ascii_code.code.get(line_word.get('line_word'+str(iii))[lins]), linss%32, lins%12, supper, slower)

                                    supper += 1

                    

                        sleep(6)

#                     for iii in range(1,2):

#                         for linss in range(32):

#                             supper=slower=0

#                             for lins in range(9):

# #                                 temp_list=ascii_code.code.get(('line_word'+str(iii))[lins])

# #                                 print(temp_list,type(temp_list))

#                                 if (line_wors.get('line_word'+str(iii))[lins]).islower():

#                                     word_size24 (ascii_code.code.get(line_wors.get('line_word'+str(iii))[lins]), linss%32, lins%12, supper, slower)

#                                     slower += 1

#                                 else:

#                                     last_word_size32 (ascii_code.code.get(line_wors.get('line_word'+str(iii))[lins]), linss%32, lins%12, supper, slower)

#                                     supper += 1

#                     sleep(6)

#                     for iii in range(1,2):

#                         for linss in range(32):

#                             supper=slower=0

#                             for lins in range(9):

# #                                 temp_list=ascii_code.code.get(('line_word'+str(iii))[lins])

# #                                 print(temp_list,type(temp_list))

#                                 if (line_wors.get('line_word'+str(iii))[lins]).islower():

#                                     word_size24 (ascii_code.code.get(line_wors.get('line_word'+str(iii))[lins]), linss%32, lins%12, supper, slower)

#                                     slower += 1

#                                 else:

#                                     last_word_size32 (ascii_code.code.get(line_wors.get('line_word'+str(iii))[lins]), linss%32, lins%12, supper, slower)

#                                     supper += 1

def floor1def():

    day_jia = 0

    hour_jia = 0

    day_flag = False

    hour_flag = False

    price_flag = False

    posltion = False

    zongjia = 0

    pay1 = [0,0,0,0]

 

    print("floor1 now")

#     uart1.write('ST<{"cmd_code":"set_text","type":"edit","widget":"message3","text":"2.00$/H"}>ET')

    uart1.sendbreak()

    while True:

        if uart1.any()>1:

            rx2 = []

            data_name2 = ''

            bin_data = uart1.read(40)

            uart1.sendbreak()

            rx1 = list(bin_data)

            for item in rx1:

                rx2.append(chr(item))

            print(rx2)

            if rx1[3:5:1] == button_cmd:

                data_name_len = rx1[6] - 1

                data_name = rx2[7:data_name_len+6:1]

                data_name2 = ''.join(data_name)

                print(data_name2)

                if data_name2 == 'back':

                    break

                elif data_name2 == 'position':

                    posltion = True

                    pay1[0]=rx2[15]

                    write1(rx2[15])

                elif data_name2 == 'pay' and posltion and price_flag:

                    uart1.write('ST<{"cmd_code":"open_win","type":"window","widget":"window7"}>ET')

                    pay(pay1)

#                 if data_name2 == 'pay' and posltion = True and (day_flag or hour_flag):

#                     posltion = True

#                     uart1.write('ST<{"cmd_code":"open_win","type":"window","widget":"window7"}>ET')

            if rx1[3:5:1] == selector_cmd:

                data_name_len = rx1[6] - 4

                data_name = rx2[7:data_name_len+7:1]

                data_name2 = ''.join(data_name)

                print(data_name2)

                if data_name2 == 'time_day1':

                    pay1[1]=rx2[19]

                    write2(ord(rx2[19]))

                    day_jia = ord(rx2[19])

                    day_flag = True

                elif data_name2 == 'time_hour1':

                    pay1[2]=rx2[20]

                    write3(ord(rx2[20]))

                    hour_jia = ord(rx2[20])

                    hour_flag = True

            if hour_flag or day_flag:

                price_flag = True

                zongjia = (day_jia*48) + (hour_jia*2)

                pay1[3]=zongjia

                print(str(zongjia))

                uart1.write('ST<{"cmd_code":"set_text","type":"edit","widget":"message4","text":"'+str(zongjia)+'"}>ET')

                hour_flag = day_flag = False

 

def floor2def():

    pass

 

def floor3def():

    pass

 

def write1(num):

    #print(ss)

    for item in range(49,55):

        uart1.write('ST<{"cmd_code":"set_image","type":"image","widget":"image1_'+chr(item)+'","image":"nocar_bg"}>ET')

    uart1.write('ST<{"cmd_code":"set_image","type":"image","widget":"image1_'+num+'","image":"selectedcar_bg2"}>ET')

    uart1.write('ST<{"cmd_code":"set_text","type":"edit","widget":"message1","text":"F1 - '+num+'"}>ET')

    

def write2(num):

#     danjia = 1

    uart1.write('ST<{"cmd_code":"set_text","type":"edit","widget":"message2","text":"'+str(num)+'"}>ET')

#     if danjia == 1:

#         uart1.write('ST<{"cmd_code":"set_text","type":"edit","widget":"message3","text":"2.00$/H"}>ET')

 

def write3(num):

#     danjia = 1

    uart1.write('ST<{"cmd_code":"set_text","type":"edit","widget":"message22","text":"'+str(num)+'"}>ET')

#     if danjia == 1:

#         uart1.write('ST<{"cmd_code":"set_text","type":"edit","widget":"message3","text":"2.00$/H"}>ET')

 

 

 

def last_word_size32 (word_line, linss, lins, supper, slower):

    for mov_bit in range((supper*32)+(slower*24)):

        PRINTER_CLK.value(0)

        sleep(delaytime)

        PRINTER_DIN.value(0)

        PRINTER_CLK.value(1)

        sleep(delaytime)

    for mov_bit in range(31, -1, -1):

        word_bit = (word_line[linss] >> mov_bit)&0b00000000000000000000000000000001

        PRINTER_CLK.value(0)

        sleep(delaytime)

        PRINTER_DIN.value(word_bit)

        PRINTER_CLK.value(1)

        sleep(delaytime)

    for mov_bit in range(352-((supper*32)+(slower*24))):

        PRINTER_CLK.value(0)

        sleep(delaytime)

        PRINTER_DIN.value(0)

        PRINTER_CLK.value(1)

        sleep(delaytime)

    if (supper*32)+(slower*24) < 192:

        PRINTER_LAT.value(0)

        STB1.value(1)

        STB2.value(1)

        STB3.value(1)

        STB4.value(1)

        sleep(0.005)

        STB1.value(0)

        STB2.value(0)

        STB3.value(0)

        STB4.value(0)

        PRINTER_LAT.value(1)

    else:

        PRINTER_LAT.value(0)

        STB4.value(1)

        STB5.value(1)

        STB6.value(1)

        sleep(0.005)

        STB4.value(0)

        STB5.value(0)

        STB6.value(0)

        PRINTER_LAT.value(1)

#         PRINTER_LAT.value(0)

#         STB1.value(1)

#         STB2.value(1)

#         STB3.value(1)

#         STB4.value(1)

#         STB5.value(1)

#         STB6.value(1)

#         sleep(0.005)

#         STB1.value(0)

#         STB2.value(0)

#         STB3.value(0)

#         STB4.value(0)

#         STB5.value(0)

#         STB6.value(0)

#         PRINTER_LAT.value(1)

        

def word_size24 (word_line, linss, lins, supper, slower):

    for mov_bit in range((supper*32)+(slower*24)):

        PRINTER_CLK.value(0)

        sleep(delaytime)

        PRINTER_DIN.value(0)

        PRINTER_CLK.value(1)

        sleep(delaytime)

    for mov_bit in range(23, -1, -1):

        word_bit = (word_line[linss] >> mov_bit)&0b000000000000000000000001

        PRINTER_CLK.value(0)

        sleep(delaytime)

        PRINTER_DIN.value(word_bit)

        PRINTER_CLK.value(1)

        sleep(delaytime)

    for mov_bit in range(360-((supper*32)+(slower*24))):

        PRINTER_CLK.value(0)

        sleep(delaytime)

        PRINTER_DIN.value(0)

        PRINTER_CLK.value(1)

        sleep(delaytime)

    if (supper*32)+(slower*24) < 192:

        PRINTER_LAT.value(0)

        STB1.value(1)

        STB2.value(1)

        STB3.value(1)

        sleep(0.005)

        STB1.value(0)

        STB2.value(0)

        STB3.value(0)

        PRINTER_LAT.value(1)

    else:

        PRINTER_LAT.value(0)

        STB4.value(1)

        STB5.value(1)

        STB6.value(1)

        sleep(0.005)

        STB4.value(0)

        STB5.value(0)

        STB6.value(0)

        PRINTER_LAT.value(1)

#         PRINTER_LAT.value(0)

#         STB1.value(1)

#         STB2.value(1)

#         STB3.value(1)

#         STB4.value(1)

#         STB5.value(1)

#         STB6.value(1)

#         sleep(0.005)

#         STB1.value(0)

#         STB2.value(0)

#         STB3.value(0)

#         STB4.value(0)

#         STB5.value(0)

#         STB6.value(0)

#         PRINTER_LAT.value(1)

 

while True:

    if uart1.any()>1:

        rx2 = []

        data_name2 = ''

        bin_data = uart1.read(40)

        uart1.sendbreak()

        rx1 = list(bin_data)

        for item in rx1:

            rx2.append(chr(item))

        print(rx2)

        if rx2[7:13:1] == floor1:

            floor1def()

        elif rx2[7:13:1] == floor2:

            floor2def()

        elif rx2[7:13:1] == floor3:

            floor3def()

 

for linss in range(32):

    supper=slower=0

    if linss < 32:

        for lins in range(len(line_word)):

#             if lins//12:

#                 break

            if (line_word[lins].isupper() or line_word[lins].isdigit() or line_word[lins].isspace()):

                last_word_size32 (ascii_code.code.get(line_word[lins]), linss%32, lins%12, supper, slower)

                supper += 1

            elif (line_word[lins].islower()):

                word_size24 (ascii_code.code.get(line_word[lins]), linss%32, lins%12, supper, slower)

                slower += 1

    else:

        if linss == 32:

            sleep(5.8)

        for lins in range(motor_speed):

            if (line_word[lins].isupper()):

                last_word_size32 (ascii_code.code.get(line_word[12]), linss%32, lins%12, len(line_word))

#     elif:

#         _thread.start_new_thread(motor.run_stop, (motor_speed, line))

#     for linss in range(32):

#         for lins in range(len(line_word)):

#             if (line_word[lins].isupper()):

#                 last_word_size32 (ascii_code.code.get(line_word[lins]), linss, lins, len(line_word))

 

line_word.clear()
Video demo

 
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