def printstuff(wrapped_title, wrapped_author, wrapped_desc):
p = printer.ThermalPrinter(serialport="/dev/ttyAMA0")
p.print_text("\nHey book lovers! How's it going?\n")
p.justify("C")
p.print_text("Check out")
p.linefeed()
p.justify("C")
p.underline_on()
p.print_text(wrapped_title)
p.underline_off()
p.linefeed()
p.justify("C")
p.print_text("by ")
p.underline_on()
p.print_text(wrapped_author)
p.underline_off()
p.linefeed()
p.justify()
p.print_text(wrapped_desc)
p.linefeed()
p.linefeed()
p.linefeed()
p.linefeed()
p.linefeed()
return
def byte_print(byte_file_path, serialport='/dev/ttyAMA0'):
'''Prints the corresponding byte file on paper.
Takes:
byte_path-> str (pointing to a text file)
Returns:
1-> int
'''
thermal = printer.ThermalPrinter(serialport=serialport)
thermal.print_from_byte_file(byte_file_path)
print("printing %s" % byte_file_path)
return 1
def image_print(image_path, serialport='/dev/ttyAMA0'):
'''Prints the corresponding image file on paper.
Takes:
image_path-> str (pointing to an RGB/RGBA image)
Returns:
1-> int
'''
thermal = printer.ThermalPrinter(serialport=serialport)
img = Image.open(image_path)
img = img.convert("1") #Convert to single channel
data = list(img.getdata())
w, h = img.size
thermal.print_bitmap(data, w, h, False)
return 1
def __init__(self):
printer.ThermalPrinter.BAUDRATE = 9600
self.printer = printer.ThermalPrinter(serialport='/dev/ttyUSB0')
self.logf = open(LOG_FILE, 'a')
self.client = mqtt.Client()
self.set_key(KEY)
self.state = PRINTED # Require reset
self.state_time = 0
self.heartbeat_time = time.time()
self.lock = threading.Lock()
# GPIO setup
GPIO.setmode(GPIO.BCM)
GPIO.setup(RESET_GPIO, GPIO.IN, pull_up_down=GPIO.PUD_UP)
GPIO.setup(LED_RED, GPIO.OUT)
GPIO.setup(LED_GREEN, GPIO.OUT)
def main():
serialport = get_serialport()
baudrate = get_baudrate()
#create printer object
p = printer.ThermalPrinter(serialport=serialport, baudrate=baudrate)
#get our data as an array from read_in()
lines = read_in()
p.justify('L')
# print textwrap.fill('u' + lines['content'].encode('utf-8').strip()) + '\n'
p.print_text(textwrap.fill(lines['content'].encode('utf-8').strip()) + '\n')
if lines['image'] != '':
from PIL import Image
from io import BytesIO
data = lines['image']
img = Image.open(BytesIO(base64.b64decode(data)))
basewidth = 384
wpercent = (basewidth/float(img.size[0]))
hsize = int((float(img.size[1])*float(wpercent)))
img = img.resize((basewidth,hsize), PIL.Image.ANTIALIAS)
img = img.convert('1')
w, h = img.size
p.justify('C')
p.print_bitmap(img.getdata(), w, h, True)
p.justify()
p.justify('R')
p.print_text('--------' + '\n')
p.font_b()
p.print_text(lines['from'].encode('utf-8').strip() + '\n')
p.font_b(False)
#print lines['from']
p.justify('R')
p.font_b()
p.print_text(lines['meta'].encode('utf-8').strip() + '\n')
p.font_b(False)
#print lines['meta']
p.justify('L')
p.print_text('________________________________')
p.linefeed()
p.linefeed()
p.linefeed()
def test_print(self, image_path):
# プリンタ準備
p = printer.ThermalPrinter(heatingDots=0, heatTime=255, heatInterval=255)
# resize
img = cv.imread(image_path)
#ih,iw,ic = img.shape[:3]
#new_h = ih*(iw/384)
#img = cv.resize(img,dsize=(384,new_h))
img = cv.resize(img,dsize=(384,537))
img = cv.rotate(img, cv.ROTATE_180)
cv.imwrite("tmp.jpg", img)
#i = Image.open("tmp.jpg").convert('1')
i = Image.open("tmp.jpg")
# edge only
#i1 = i.convert('L')
#i2 = i1.filter(ImageFilter.MaxFilter(5))
#i3 = ImageChops.difference(i1,i2)
#output_image = ImageOps.invert(i3)
#i = ImageOps.equalize(i)
#i = i.convert('1')
#output_image = i.convert('L')
output_image = i.convert('1')
output_image.save("./tmp.jpg")
data = list(output_image.getdata())
w, h = output_image.size
p.set_param()
p.print_bitmap(data, w, h)
# 少し紙送り
p.linefeed(3)
import requests
import schedule
import time
import re
import os
import subprocess
import cStringIO
import printer
from PIL import Image, ImageDraw
# TODO: Edit zj-58 driver to make the media size smaller?
subprocess.call(["stty", "-F", "/dev/ttyUSB0", "19200"])
#subprocess.call(["stty", "-F", "/dev/ttyAMA1", "19200"])
p = printer.ThermalPrinter()
#p = printer.ThermalPrinter(serialport="/dev/ttyAMA1")
def print_messages():
print("hello")
# r = requests.get("http://localhost:3001/messages")
r = requests.get("https://send-nate-a-message.herokuapp.com/messages")
for message in r.json():
id = message["id"]
print(message["id"])
print(message["text"])
print(message["image"])
image_data = re.sub('^data:image/.+;base64,', '', message["image"]).decode('base64')
#!/usr/local/bin/python2
# coding:utf-8
import printer
from PIL import Image
import sys
port = "/dev/cuaU0"
#brate = 115200
brate = 38400
#brate = 19200
if len(sys.argv) > 1:
imagefile = sys.argv[1]
if len(sys.argv) > 2:
port = sys.argv[2]
if len(sys.argv) > 3:
brate = int(sys.argv[3])
else:
print("File name ")
exit(1)
p = printer.ThermalPrinter(serialport=port, baudrate=brate)
i = Image.open(imagefile)
data = list(i.getdata())
w, h = i.size
p.print_bitmap(data, w, h)
p.linefeed(3)
import printer, textwrap, sys # Pi 1 and 2 # p = printer.ThermalPrinter(serialport="/dev/ttyAMA0") # Pi 3 p = printer.ThermalPrinter(serialport="/dev/ttyS0") unwrapped_text = "\n From My Pi, Roses are red, violets are blue, I'm seeing a future filled with Poems and you!\n" wrapped_text = textwrap.fill(unwrapped_text, 32) p.print_text(wrapped_text) p.linefeed() p.linefeed() p.linefeed()