lxuy 发布的帖子

可以给写一个历程吗，开白色和关闭白色

我想让闪光灯是白色，稳定调试

想让在颜色识别的的时候点亮闪光灯
有没有教程

如何吧三个不同颜色定义成不同的数字比如红色是1绿色是2黄色是4

现在是会出现好几个1好几个2好几个4但是我只想要一个124，就是这个红色会识别很多次绿色会识别很多次，蓝色会识别很多次

颜色过去以后会出现好几遍这个颜色，能不能只出现一次

import sensor, image,time,pyb,utime
import sensor, image, time,utime
from pyb import UART
uart = UART(3, 57600)
output_str=0
yanse=0
flag=1
while 1:
  if uart.any():
	 flag=uart.readline().decode()
	 flag=int(flag)
	 print(flag)
  if flag==1:
		 thresholds = [(60, 18, 37, 75, -35, 76),(58, 24, -11, 17, -61, -16),(60, 30, -17, -58, -43, 31)]
		 sensor.reset()
		 sensor.set_pixformat(sensor.RGB565)
		 sensor.set_framesize(sensor.QVGA)
		 sensor.skip_frames(time = 2000)
		 sensor.set_auto_gain(False)
		 sensor.set_auto_whitebal(False)
		 while flag :
			img = sensor.snapshot()
			blobs=img.find_blobs(thresholds, pixels_threshold=5000, area_threshold=400)
			for blob in blobs:
			  img.draw_rectangle(blob.rect())
			  img.draw_cross(blob.cx(), blob.cy())
			  yanse="%s" % (blob.code())
			  print( yanse)
			  if  yanse:
				 uart.write(yanse)
				 yanse=0

原来可以用，加了一个f=3的判断语句，结果就不行了

我识别一个颜色就让他加1一共识别三个颜色然后退出这个循环

我要识别三个颜色，当三个颜色识别结束以后退出颜色识别程序打开二维码扫码程序，但是不能累加颜色识别计数
这是程序

import sensor, image,time,pyb,utime
import sensor, image, time,utime
from pyb import UART
p0 = pyb.Pin('P0', pyb.Pin.OUT_PP)
p0.value(1)
uart = UART(3, 57600)
output_str=0
yanse=0
flag0=1
f=0
while 1:
  if uart.any():
	 flag0=uart.readline().decode()
	 flag0=int(flag0)
	 print(flag0)
  if flag0==1:
		 thresholds= [(60, 18, 37, 75, -35, 76),(58, 24, -11, 17, -61, -16),(60, 30, -17, -58, -43, 31)]
		 sensor.reset()
		 sensor.set_pixformat(sensor.RGB565)
		 sensor.set_framesize(sensor.QVGA)
		 sensor.skip_frames(time = 2000)
		 sensor.set_auto_gain(False)
		 sensor.set_auto_whitebal(False)
		 while flag0 :
			img = sensor.snapshot()
			blobs=img.find_blobs(thresholds, pixels_threshold=5000, area_threshold=400)
			for blob in blobs:
			  img.draw_rectangle(blob.rect())
			  img.draw_cross(blob.cx(), blob.cy())
			  yanse="%s" % (blob.code())
			  print( yanse)
			  pyb.delay(500)
			  if  yanse :
                 f=f+1
				 uart.write(yanse)
				 yanse=0
              if f==3 :
                 flag0=2
                 
				
  if flag0==2:
	sensor.reset()
	sensor.set_pixformat(sensor.GRAYSCALE)
	sensor.set_framesize(sensor.VGA)
	sensor.set_windowing((240, 240))
	sensor.skip_frames(30)
	sensor.set_auto_gain(False)
	while flag :
	  img = sensor.snapshot()
	  img.lens_corr(0.1)
	  for code in img.find_qrcodes():
		img.draw_rectangle(code.rect(), color = (255, 0, 0))
		output_str="%s" % (code.payload())
		print(output_str)
		pyb.delay(500)
		if output_str:
		   uart.write(output_str)
		   pyb.delay(10)
		   p0.value(0)
		   pyb.delay(10)
		   p0.value(1)
		   output_str=0
		   flag=0

怎么修改呢，给一个提示可以吗

import sensor, image,time,pyb,utime
import sensor, image, time,utime
from pyb import UART
p0 = pyb.Pin('P0', pyb.Pin.OUT_PP)
p0.value(1)
uart = UART(3, 19200)
output_str=0
yanse=0
flag=2
while 1:
if uart.any():
flag=uart.readline().decode()
flag=int(flag)
print(flag)
if flag==1:
sensor.reset()
sensor.set_pixformat(sensor.GRAYSCALE)
sensor.set_framesize(sensor.VGA)
sensor.set_windowing((240, 240)) # look at center 240x240 pixels of the VGA resolution.
sensor.skip_frames(30)
sensor.set_auto_gain(False) # must turn this off to prevent image washout...
clock = time.clock()
clock.tick()
img = sensor.snapshot()
img.lens_corr(0.1) # strength of 1.8 is good for the 2.8mm lens.
for code in img.find_qrcodes():
img.draw_rectangle(code.rect(), color = (255, 0, 0))
output_str="%s" % (code.payload())
uart.write(output_str)
print(output_str)
pyb.delay(500)
if output_str:
p0.value(0)
pyb.delay(10)
p0.value(1)
output_str=0
flag=0
if flag==2:
thresholds = [(54, 74, 44, 91, -16, 52),(76, 48, -22, 75, -76, -25),(68, 83, -47, -22, -7, 40)] # generic_blue_thresholds
sensor.reset()
sensor.set_pixformat(sensor.RGB565)
sensor.set_framesize(sensor.QVGA)
sensor.skip_frames(time = 2000)
sensor.set_auto_gain(False) # must be turned off for color tracking
sensor.set_auto_whitebal(False) # must be turned off for color tracking
clock = time.clock()
utime.sleep_ms(2000)
img = sensor.snapshot()
blobs=img.find_blobs(thresholds, pixels_threshold=5000, area_threshold=400)
for blob in blobs:
img.draw_rectangle(blob.rect())
img.draw_cross(blob.cx(), blob.cy())
yanse="%s" % (blob.code())
uart.write(yanse)
print( yanse)
pyb.delay(500)
if yanse:
p0.value(0)
pyb.delay(10)
p0.value(1)
yanse=0

怎么能同时识别3个不同颜色的色块，并以123的形式串口通信到2560上面