openmv的P9引脚外接了一个LED

[b2em]

我在P9引脚外接了一个LED灯，我想让openmv检测到矩形的时候P9输出高电平点亮LED，反之熄灭，但是它报错了

import sensor, image, time
from pyb import UART,LED
import pyb
sensor.reset()
sensor.set_pixformat(sensor.GRAYSCALE) # 灰度更快(160x120 max on OpenMV-M7)
sensor.set_framesize(sensor.QQVGA)
sensor.skip_frames(time = 2000)
clock = time.clock()
p = pyb.Pin("P9",pyb.Pin.OUT_PP)
tuple([p.high(),p.low()])
#p.high()
#p.low()
LED(1).on()
LED(2).on()
LED(3).on()

while(True):
    clock.tick()
    img = sensor.snapshot()
    jx=img.find_rects(threshold = 15000)
    # 下面的`threshold`应设置为足够高的值，以滤除在图像中检测到的具有
    # 低边缘幅度的噪声矩形。最适用与背景形成鲜明对比的矩形。
    for r in img.find_rects(threshold = 15000):
        if jx:
            p=tuple([p.high()])
        else:
            p=tuple([p.low()])
        img.draw_rectangle(r.rect(), color = (255, 0, 0))
        cx = r.x() + (r.w() // 2)
        cy = r.y() + (r.h() // 2)
        img.draw_line((80,60,cx,cy), color=(127))
        img.draw_cross(cx ,cy)
        img.draw_cross(80 ,60)
        for p in r.corners(): img.draw_circle(p[0], p[1], 5, color = (0, 255, 0))
        print(cx,cy)

    print("FPS %f" % clock.fps())

下面是它的报错

怎么解决

[kidswong999]

25行和27行，p怎么变成tuple了？

[b2em]

我直接写P=p.high()它就报错，说我tuple缺少'high'

[kidswong999]

大概改了一下代码：

import sensor, image, time
from pyb import UART,LED
import pyb
sensor.reset()
sensor.set_pixformat(sensor.GRAYSCALE) # 灰度更快(160x120 max on OpenMV-M7)
sensor.set_framesize(sensor.QQVGA)
sensor.skip_frames(time = 2000)
clock = time.clock()
p = pyb.Pin("P9",pyb.Pin.OUT_PP)
#p.high()
#p.low()
LED(1).on()
LED(2).on()
LED(3).on()

while(True):
    clock.tick()
    img = sensor.snapshot()
    rects=img.find_rects(threshold = 15000)
    if rects:
        p.value(1)
    else:
        p.value(0)
    for r in rects:
        img.draw_rectangle(r.rect(), color = (255, 0, 0))
        cx = r.x() + (r.w() // 2)
        cy = r.y() + (r.h() // 2)
        img.draw_line((80,60,cx,cy), color=(127))
        img.draw_cross(cx ,cy)
        img.draw_cross(80 ,60)
        for p in r.corners(): img.draw_circle(p[0], p[1], 5, color = (0, 255, 0))
        print(cx,cy)

    print("FPS %f" % clock.fps())