@18852935127 在 Openmv通讯问题，两个模块不能通讯，但是stm32或openmv单独与电脑可以通讯。 中说：

sensor.skip_frames(30)
我这面试验了一下，还是没有反应啊

@kidswong999 是stm32的接受协议错了吗？？

@kidswong999 串口里面是有数据的

 import sensor, image,time
import json
from pyb import UART


sensor.reset()

sensor.set_pixformat(sensor.RGB565)

sensor.set_framesize(sensor.QVGA)

sensor.skip_frames(time = 2000)

sensor.set_auto_gain(False) # must turn this off to prevent image washout...

clock = time.clock()

uart = UART(3, 115200)

#uart.init(19200, bits=8, parity=None, stop=1)  #8位数据位，无校验位，1位停止位

while(True):

    clock.tick()

    img = sensor.snapshot()

    img.lens_corr(1.8) # 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))
        message = code.payload()
        uart.write(message)
        print(code)
    else:
        print("not found!")
#if message == "abc" :
#    num = 1
#    uart.write(num)
#    print(message)
#       time.sleep(1000)
#if message == "def" :
#    uart.write('2')
 #   time.sleep(1000)


```stm32代码
void LED_RED(void)
{
  GPIO_InitTypeDef  GPIO_InitStructure;
	 
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOE, ENABLE);	    //使能PB,PE端口时钟
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;			    //LED0-->PB.5 端口配置
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; 	 //推挽输出
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;	 //IO口速度为50MHz
  GPIO_Init(GPIOE, &GPIO_InitStructure);	  	       //初始化GPIO
  GPIO_SetBits(GPIOB,GPIO_Pin_5); 			 //PE.5 输出高 	  
  GPIO_ResetBits(GPIOB,GPIO_Pin_5);
}

void USART1_IRQHandler(void)
{ 
	u8 res;
	if(USART_GetITStatus(USART1,USART_IT_RXNE))
{ 
			
	  res= USART_ReceiveData(USART1); 
      USART_SendData(USART1,res);     //huan hang 
		    
			
   	     if(res=='1')
			{
	     res='a';
         USART_SendData(USART1,res);
	 	 LED_RED();  //liang
		 Delay(5000000);  
			}
		  if(res=='2')
			{
	     res='b';
         USART_SendData(USART1,res);
	    LED_CLOSE(); //mie
		Delay(5000000);
			}
//	     if(res=='3')
//			{
//	     res='c';
//         USART_SendData(USART1,res);
//			}
		
}
	
	
	
	

 }
 int main(void)
 {	
	 LED_CLOSE();
     NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
	 My_USART1_Init();
	 USART1_IRQHandler();
	 
	 LED_CLOSE();
	 while(1);
	 
 }