我想给Arduino发送红色色块的一个坐标信息,在Arduino那边串口监视器显示的是乱码
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import sensor, image, time
import json
from pyb import UARTFor color tracking to work really well you should ideally be in a very, very,
very, controlled enviroment where the lighting is constant...
red_threshold = (30, 100, 15, 127, 15, 127)
You may need to tweak the above settings for tracking green things...
Select an area in the Framebuffer to copy the color settings.
sensor.reset() # Initialize the camera sensor.
sensor.set_pixformat(sensor.RGB565) # use RGB565.
sensor.set_framesize(sensor.QQVGA) # use QQVGA for speed.分辨率为120*160。
sensor.skip_frames(10) # Let new settings take affect.
sensor.set_auto_whitebal(False) # turn this off.
clock = time.clock() # Tracks FPS.uart = UART(3, 115200)
def find_max(blobs):
max_size=0
for blob in blobs:
if blob[2]*blob[3]>max_size:
max_blob=blob
max_size=blob[2]*blob[3]
return max_blobwhile(True):
clock.tick() # Track elapsed milliseconds between snapshots().
img = sensor.snapshot() # Take a picture and return the image.
img.draw_cross(int(img.width()/2),int(img.height()/2))
blobs = img.find_blobs([red_threshold])
if blobs:
max_blob = find_max(blobs)
#print('sum : %d'% len(blobs))# Draw a rect around the blob. img.draw_rectangle(max_blob[0:4]) # rect img.draw_cross(max_blob[5], max_blob[6]) # cx, cy #{(1,22),(-3,33),(22222,0),(9999,12),(0,0)} uart.writechar((max_blob[5])) # print('you send:',data_out) print(max_blob[5], max_blob[6]) print(img.width()/2,img.height()/2)#宽度80,高度60 else: print("not found!")
Arduino
#include <SoftwareSerial.h>
SoftwareSerial softSerial(10, 11); // RX, TX
char c;
String comdata = "";void setup() {
// put your setup code here, to run once:
softSerial.begin(115200);
Serial.begin(115200);
}void loop() {
if(softSerial.available())
{comdata += char(softSerial.read());
delay(2);Serial.println(comdata);
}
}