import sensor, image, time, os, tf, math, uos, gc
import json,pyb
from pyb import UART,LED
green_threshold  = (0, 58, -49, -19, 39, -17)
red_thresholds  = (0, 100, 7, 127, -128, 127)
led3=pyb.LED(3)
sensor.reset()
sensor.set_pixformat(sensor.RGB565)
sensor.set_framesize(sensor.QVGA)
sensor.set_windowing((240, 240))
sensor.skip_frames(time = 2000)
uart = UART(3,115200)
uart.init(115200,bits = 8,parity = None,stop = 1)
net = None
labels = None
min_confidence = 0.5
try:
    net = tf.load("trained.tflite", load_to_fb=uos.stat('trained.tflite')[6] > (gc.mem_free() - (64*1024)))
except Exception as e:
    raise Exception('Failed to load "trained.tflite", did you copy the .tflite and labels.txt file onto the mass-storage device? (' + str(e) + ')')
try:
    labels = [line.rstrip('\n') for line in open("labels.txt")]
except Exception as e:
    raise Exception('Failed to load "labels.txt", did you copy the .tflite and labels.txt file onto the mass-storage device? (' + str(e) + ')')
colors = [
    (255,   0,   0),
    (  0, 255,   0),
    (255, 255,   0),
    (  0,   0, 255),
    (255,   0, 255),
    (  0, 255, 255),
    (255, 255, 255),
]
clock = time.clock()
U1=1
while(True):
    clock.tick()
    img = sensor.snapshot()
    while(U1):
        clock.tick()
        img = sensor.snapshot()
        for i, detection_list in enumerate(net.detect(img, thresholds=[(math.ceil(min_confidence * 255), 255)])):
            if (i == 0): continue
            if (len(detection_list) == 0): continue
            print("********** %s **********" % labels[i])
            for d in detection_list:
                [x, y, w, h] = d.rect()
                center_x = math.floor(x + (w / 2))
                center_y = math.floor(y + (h / 2))
                print('x %d\ty %d' % (center_x, center_y))
                #zuo[0]=math.floor(x + (w / 2))
                #zuo[1]=math.floor(y + (h / 2))
                print(labels[i])
                uart.write(labels[i])
                led3.on()
                u1=0
        print(clock.fps(), "fps", end="\n\n")

上面是openmv的函数，下面是32

void Openmv_Receive_Data(int16_t data)
{
//	static u8 state = 0;
	openmv2=data;  //定义一个变量接收openmv发送的数据
}
OLED_ShowNum(70,20,openmv2,3,12);

openmv的串行终端上可以正确打印，但是32上不行