Troszkę poczytałem że jest to problem z konwersją / kodowaniem ? ... bajtów na string ? sory ale w programowaniu jestem zupełnym laikiem i pewnie już za późno na naukę na takim poziomie.TypeError: a bytes-like object is required, not 'str'
Skrypt działał prawidłowo w innym systemie i pewnie tu jest problem a dzieli ich pewnie "epoka" jakieś Ubuntu lub Debian z przed 10 lat a obecnie Debian (Bullseye) system ARM. O ile się dobrze zorientowałem w/w błędy występują z powodu innej wersji pythona obecnie to wersja 3 i sam skrypt nie uruchamia się zupełnie z plecenia : python example.py ....dając nieustanny błąd: ImportError: No module named smbus ( choć w systemie jest na pewno smbus ale pewnie dla python3 ? bo smbus dla pythona nie ma kandydata do instalacji pewnie już w danych repozytoriach jest tylko dla python3 )
Sam skrypt jest kombinowany i poprawiany dla (mało popularnego orangepi) + polskich znaków diakrytycznych które wyświetlały się jako różne "ślaczki" lub znaki

Kod: Zaznacz cały
#!/usr/bin/python
# -*- coding: utf-8 -*-
#--------------------------------------
# ___ ___ _ ____
# / _ \/ _ \(_) __/__ __ __
# / , _/ ___/ /\ \/ _ \/ // /
# /_/|_/_/ /_/___/ .__/\_, /
# /_/ /___/
#
# lcd_i2c.py
# LCD test script using I2C backpack.
# Supports 16x2 and 20x4 screens.
#
# Author : Matt Hawkins
# Date : 20/09/2015
#
# http://www.raspberrypi-spy.co.uk/
#
# Copyright 2015 Matt Hawkins
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
#--------------------------------------
try:
import smbus2 as smbus
except ImportError:
import smbus
import time
import subprocess
from time import sleep, strftime
from datetime import datetime
from subprocess import *
# Define some device parameters
I2C_ADDR = 0x3f # I2C device address
LCD_WIDTH = 16 # Maximum characters per line
# Define some device constants
LCD_CHR = 1 # Mode - Sending data
LCD_CMD = 0 # Mode - Sending command
LCD_LINE_1 = 0x80 # LCD RAM address for the 1st line
LCD_LINE_2 = 0xC0 # LCD RAM address for the 2nd line
LCD_LINE_3 = 0x94 # LCD RAM address for the 3rd line
LCD_LINE_4 = 0xD4 # LCD RAM address for the 4th line
LCD_BACKLIGHT = 0x08 # On
#LCD_BACKLIGHT = 0x00 # Off
ENABLE = 0b00000100 # Enable bit
# Timing constants
E_PULSE = 0.0005
E_DELAY = 0.0005
#Open I2C interface
#bus = smbus.SMBus(0) # Rev 1 Pi uses 0
bus = smbus.SMBus(0) # Rev 2 Pi uses 1
def lcd_init():
# Initialise display
lcd_byte(0x33,LCD_CMD) # 110011 Initialise
lcd_byte(0x32,LCD_CMD) # 110010 Initialise
lcd_byte(0x06,LCD_CMD) # 000110 Cursor move direction
lcd_byte(0x0C,LCD_CMD) # 001100 Display On,Cursor Off, Blink Off
lcd_byte(0x28,LCD_CMD) # 101000 Data length, number of lines, font size
lcd_byte(0x01,LCD_CMD) # 000001 Clear display
time.sleep(E_DELAY)
def lcd_byte(bits, mode):
# Send byte to data pins
# bits = the data
# mode = 1 for data
# 0 for command
bits_high = mode | (bits & 0xF0) | LCD_BACKLIGHT
bits_low = mode | ((bits<<4) & 0xF0) | LCD_BACKLIGHT
# High bits
bus.write_byte(I2C_ADDR, bits_high)
lcd_toggle_enable(bits_high)
# Low bits
bus.write_byte(I2C_ADDR, bits_low)
lcd_toggle_enable(bits_low)
def lcd_toggle_enable(bits):
# Toggle enable
time.sleep(E_DELAY)
bus.write_byte(I2C_ADDR, (bits | ENABLE))
time.sleep(E_PULSE)
bus.write_byte(I2C_ADDR,(bits & ~ENABLE))
time.sleep(E_DELAY)
def lcd_string(message,line):
# Send string to display
message = message.ljust(LCD_WIDTH," ")
lcd_byte(line, LCD_CMD)
for i in range(LCD_WIDTH):
lcd_byte(ord(message[i]),LCD_CHR)
def replace_pl(chars):
pl = { 'ą': 'a',
'ć': 'c',
'ę': 'e',
'ł': 'l',
'ń': 'n',
'ó': 'o',
'ś': 's',
'ź': 'z',
'ż': 'z',
'Ą': 'A',
'Ć': 'C',
'Ę': 'E',
'Ł': 'L',
'Ń': 'N',
'Ó': 'O',
'Ś': 'S',
'Ź': 'Z',
'Ż': 'Z',
}
for f, t in pl.items():
chars = chars.replace(f,t)
return chars
def main():
counter = 0
while True:
# Get current status and playtime
process = subprocess.Popen('sudo mpc -v', shell=True, stdout=subprocess.PIPE)
ekran1 = process.communicate()[0]
ekran1 = replace_pl(ekran1)
statusLines = ekran1.split('\n')
ekran1 = statusLines[1]
if ekran1 > '':
ekran1L1 = ekran1.split(' ',1)[0].strip()
ekran1L2temp = ekran1.split(' ',1)[1].strip()
ekran1L2 = ekran1L2temp.split(' ',1)[0].strip()
process = subprocess.Popen('sudo mpc -f %name%', shell=True, stdout=subprocess.PIPE)
ekran2 = process.communicate()[0]
ekran2 = replace_pl(ekran2)
statusLines = ekran2.split('\n')
ekran2 = statusLines[0]
ekran2L1 = ekran2[0:16]
ekran2L2 = ekran2[16:31]
process = subprocess.Popen('sudo mpc -f %artist%', shell=True, stdout=subprocess.PIPE)
ekran3 = process.communicate()[0]
ekran3 = replace_pl(ekran3)
statusLines = ekran3.split('\n')
ekran3 = statusLines[0]
ekran3L1 = ekran3[0:16]
ekran3L2 = ekran3[16:31]
process = subprocess.Popen('sudo mpc -f %title%', shell=True, stdout=subprocess.PIPE)
ekran4 = process.communicate()[0]
ekran4 = replace_pl(ekran4)
statusLines = ekran4.split('\n')
ekran4 = statusLines[0]
ekran4L1 = ekran4[0:16]
ekran4L2 = ekran4[16:31]
if counter == 1:
if ekran1 == "":
counter = 7
else:
lcd_string(ekran1L1,LCD_LINE_1)
lcd_string(ekran1L2,LCD_LINE_2)
if counter == 7:
if ekran2 == "":
counter = 14
else:
lcd_string(ekran2L1,LCD_LINE_1)
lcd_string(ekran2L2,LCD_LINE_2)
if counter == 14:
if ekran3 == "":
counter = 25
else:
lcd_string(ekran3L1,LCD_LINE_1)
lcd_string(ekran3L2,LCD_LINE_2)
if counter == 25:
if ekran4 == "":
counter = 35
else:
lcd_string(ekran4L1,LCD_LINE_1)
lcd_string(ekran4L2,LCD_LINE_2)
sleep(0.1)
counter = counter + 1
if counter == 40:
counter = 1
if __name__ == '__main__':
try:
main()
except KeyboardInterrupt:
pass
finally:
lcd_byte(0x00, LCD_CMD)
lcd_byte(0x01, LCD_CMD)
lcd_byte(0x08, LCD_CMD)
python3 radio.py
Kod: Zaznacz cały
Traceback (most recent call last):
File "/root/radio.py", line 151, in <module>
ekran1 = replace_pl(ekran1)
File "/root/radio.py", line 138, in replace_pl
chars = chars.replace(f,t)
TypeError: a bytes-like object is required, not 'str'
Ps. jeśli mi się uda to może opiszę jak zainstalować i podłączyć na ...u mnie Orangepi3 LTS + lcd 16x2 lub 40x2