条形码不能通过串口发送code.payload
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import sensor, image, time, math
from pyb import UART
import json
sensor.reset()
sensor.set_pixformat(sensor.GRAYSCALE)
sensor.set_framesize(sensor.VGA)
sensor.set_windowing((640, 80))
sensor.skip_frames(time = 2000)
sensor.set_auto_gain(False)
sensor.set_auto_whitebal(False)
clock = time.clock()
uart = UART(3,4800)
def barcode_name(code):
if(code.type() == image.EAN2):
return "EAN2"
if(code.type() == image.EAN5):
return "EAN5"
if(code.type() == image.EAN8):
return "EAN8"
if(code.type() == image.UPCE):
return "UPCE"
if(code.type() == image.ISBN10):
return "ISBN10"
if(code.type() == image.UPCA):
return "UPCA"
if(code.type() == image.EAN13):
return "EAN13"
if(code.type() == image.ISBN13):
return "ISBN13"
if(code.type() == image.I25):
return "I25"
if(code.type() == image.DATABAR):
return "DATABAR"
if(code.type() == image.DATABAR_EXP):
return "DATABAR_EXP"
if(code.type() == image.CODABAR):
return "CODABAR"
if(code.type() == image.CODE39):
return "CODE39"
if(code.type() == image.PDF417):
return "PDF417"
if(code.type() == image.CODE93):
return "CODE93"
if(code.type() == image.CODE128):
return "CODE128"
while(True):
clock.tick()
img = sensor.snapshot()
codes = img.find_barcodes()
for code in codes:
img.draw_rectangle(code.rect())
print_args = (barcode_name(code), code.payload(), (180 * code.rotation()) / math.pi, code.quality(), clock.fps())
print("Barcode %s, Payload "%s", rotation %f (degrees), quality %d, FPS %f" % print_args)
if not codes:
print("FPS %f" % clock.fps())
uart.write（ code.payload）
time.sleep(1000)
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代码格式不对，看不了
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