class Peripherals:
def __init__(self):
self.printer = Usb(0x0416, 0x5011, profile="POS-5890")
self.scanner = InputDevice(
'/dev/input/event0') # Replace with your device
self.scancodes = {
11: u'0',
2: u'1',
3: u'2',
4: u'3',
5: u'4',
6: u'5',
7: u'6',
8: u'7',
9: u'8',
10: u'9'
}
def start_scanner(self, cbfunc):
print("Starting scanner thread!")
self.scanner_thr = BaseThread(name='scanner_thr',
target=self.scanner_func,
callback=cbfunc)
self.scanner_thr.start()
def scanner_func(self):
barcode = ''
# Make a thread
for event in self.scanner.read_loop():
if event.type == ecodes.EV_KEY:
eventdata = categorize(event)
# Keydown
if eventdata.keystate == 1:
scancode = eventdata.scancode
# Enter
if scancode == 28:
# get the barcode (barcode)
return barcode
else:
key = self.scancodes.get(scancode, NOT_RECOGNIZED_KEY)
barcode = barcode + key
if key == NOT_RECOGNIZED_KEY:
print('unknown key, scancode=' + str(scancode))
def start_print(self, time, order_number, barcodes):
self.printer.set(align='left')
self.printer.text("Time : %s \n" % time)
self.printer.text("No Order : %s \n" % order_number)
self.printer.text("Gate : 1")
self.printer.text('\n')
self.printer.soft_barcode('code128',
barcodes,
module_height=8,
module_width=0.18)
self.printer.text('\n')
print("Done printing!")
from escpos.printer import Usb
# Adapt to your needs
p = Usb(0x0416, 0x5011, profile="POS-5890")
# Print software and then hardware barcode with the same content
p.soft_barcode('code39', '123456')
p.text('\n')
p.text('\n')
p.barcode('123456', 'CODE39')
from escpos.printer import Usb
# Adapt to your needs
p = Usb(0x0416, 0x5011, profile="POS-5890")
# Some software barcodes
p.soft_barcode("code128", "Hello")
p.soft_barcode("code39", "1234")
from escpos.printer import Usb
# Adapt to your needs
p = Usb(0x0416, 0x5011, profile="POS-5890")
# Some software barcodes
p.soft_barcode('code128', 'Hello')
p.soft_barcode('code39', '1234')
from escpos.printer import Usb
# Adapt to your needs
p = Usb(0x0416, 0x5011, profile="POS-5890")
# Print software and then hardware barcode with the same content
p.soft_barcode("code39", "123456")
p.text("\n")
p.text("\n")
p.barcode("123456", "CODE39")
from escpos.printer import Usb
# Adapt to your needs
p = Usb(0x0416, 0x5011, profile="POS-5890")
# Some software barcodes
p.soft_barcode('code128', 'Hello')
p.soft_barcode('code39', '123456')
