gd3p 发布的帖子

@kidswong999 好的 谢谢

@kidswong999

那是使用arduino软件版本的问题吗？我使用的是arduino1.0.6

#include <SPI.h>
#define SS_PIN 10
#define BAUD_RATE 19200
#define CHAR_BUF 128
void setup() {
pinMode(SS_PIN, OUTPUT);
Serial.begin(BAUD_RATE);
SPI.begin();
SPI.setBitOrder(MSBFIRST);
SPI.setClockDivider(SPI_CLOCK_DIV16);
SPI.setDataMode(SPI_MODE0);
delay(1000); // Give the OpenMV Cam time to bootup.
}
void loop() {
int32_t temp = 0;
char buff[CHAR_BUF] = {0};
digitalWrite(SS_PIN, LOW);
delay(1); // Give the OpenMV Cam some time to setup to send data.
if (SPI.transfer(1) == 85) { // saw sync char?
SPI.transfer(&temp, 4); // get length
int zero_legnth = 4 + ((temp + 1) % 4);
if (temp) {
SPI.transfer(&buff, min(temp, CHAR_BUF));
temp -= min(temp, CHAR_BUF);
}
while (temp--) SPI.transfer(0); // eat any remaining bytes
while (zero_legnth--) SPI.transfer(0); // eat zeros.
}
digitalWrite(SS_PIN, HIGH);
Serial.print(buff);
delay(1); // Don't loop to quickly.
}
sketch_jan03a.ino: In function 'void loop()':
sketch_jan03a:23: error: no matching function for call to 'SPIClass::transfer(int32_t*&, int)'
D:\360Downloads\Arduino\libraries\SPI/SPI.h:55: note: candidates are: static byte SPIClass::transfer(byte)
sketch_jan03a:24: error: invalid operands of types 'int32_t*' and 'int' to binary 'operator%'
sketch_jan03a:26: error: ISO C++ forbids comparison between pointer and integer
sketch_jan03a:26: error: operands to ?: have different types 'int32_t*' and 'int'
sketch_jan03a:27: error: ISO C++ forbids comparison between pointer and integer
sketch_jan03a:27: error: operands to ?: have different types 'int32_t*' and 'int'

arduino UNO的板子应该没错吧 SPI.transfer(&temp, 4); // get length
transfer第一个参数应该数传输的数组吧 这个程序传输的是数组吗？

@kidswong999 arduino UNO的板子应该没错吧 SPI.transfer(&temp, 4); // get length
transfer第一个参数应该数传输的数组吧 这个程序传输的是数组吗？

#include <SPI.h>
#define SS_PIN 10
#define BAUD_RATE 19200
#define CHAR_BUF 128

void setup() {
pinMode(SS_PIN, OUTPUT);
Serial.begin(BAUD_RATE);
SPI.begin();
SPI.setBitOrder(MSBFIRST);
SPI.setClockDivider(SPI_CLOCK_DIV16);
SPI.setDataMode(SPI_MODE0);
delay(1000); // Give the OpenMV Cam time to bootup.
}

void loop() {
int32_t temp = 0;
char buff[CHAR_BUF] = {0};
digitalWrite(SS_PIN, LOW);
delay(1); // Give the OpenMV Cam some time to setup to send data.

if (SPI.transfer(1) == 85) { // saw sync char?
SPI.transfer(&temp, 4); // get length
int zero_legnth = 4 + ((temp + 1) % 4);
if (temp) {
SPI.transfer(&buff, min(temp, CHAR_BUF));
temp -= min(temp, CHAR_BUF);
}
while (temp--) SPI.transfer(0); // eat any remaining bytes
while (zero_legnth--) SPI.transfer(0); // eat zeros.
}

digitalWrite(SS_PIN, HIGH);
Serial.print(buff);
delay(1); // Don't loop to quickly.
}

sketch_jan03a.ino: In function 'void loop()':
sketch_jan03a:23: error: no matching function for call to 'SPIClass::transfer(int32_t*&, int)'
D:\360Downloads\Arduino\libraries\SPI/SPI.h:55: note: candidates are: static byte SPIClass::transfer(byte)
sketch_jan03a:24: error: invalid operands of types 'int32_t*' and 'int' to binary 'operator%'
sketch_jan03a:26: error: ISO C++ forbids comparison between pointer and integer
sketch_jan03a:26: error: operands to ?: have different types 'int32_t*' and 'int'
sketch_jan03a:27: error: ISO C++ forbids comparison between pointer and integer
sketch_jan03a:27: error: operands to ?: have different types 'int32_t*' and 'int'

WiFi模板与电脑连接时，WiFi受限制怎么办

@kidswong999 谢谢

模板匹配时要求模板有大小需求吗？有的话，要求多大呢？

@kidswong999 新买的

import sensor, image, time

from pid import PID
from pyb import Servo

pan_servo=Servo(1)
tilt_servo=Servo(2)

red_threshold  = (13, 49, 18, 61, 6, 47)

pan_pid = PID(p=0.07, i=0, imax=90) #脱机运行或者禁用图像传输，使用这个PID
tilt_pid = PID(p=0.05, i=0, imax=90) #脱机运行或者禁用图像传输，使用这个PID
#pan_pid = PID(p=0.1, i=0, imax=90)#在线调试使用这个PID
#tilt_pid = PID(p=0.1, i=0, imax=90)#在线调试使用这个PID

sensor.reset()

# Sensor settings
sensor.set_contrast(1)
sensor.set_gainceiling(16)
# HQVGA and GRAYSCALE are the best for face tracking.
sensor.set_framesize(sensor.HQVGA)
sensor.set_pixformat(sensor.GRAYSCALE)
clock = time.clock() # Tracks FPS.

face_cascade = image.HaarCascade("frontalface", stages=25)
print(face_cascade)
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_blob


while(True):
    clock.tick() # Track elapsed milliseconds between snapshots().
    img = sensor.snapshot() # Take a picture and return the image.

    objects = img.find_features(face_cascade, threshold=0.75, scale=1.35)
    if objects:
        max_blob = find_max(objects)
        pan_error = max_blob.cx()-img.width()/2
        tilt_error = max_blob.cy()-img.height()/2

        print("pan_error: ", pan_error)

        img.draw_rectangle(max_blob.rect()) # rect
       # img.draw_cross(max_blob.cx(), max_blob.cy()) # cx, cy

        pan_output=pan_pid.get_pid(pan_error,1)/2
        tilt_output=tilt_pid.get_pid(tilt_error,1)
        print("pan_output",pan_output)
        pan_servo.angle(pan_servo.angle()+pan_output)
        tilt_servo.angle(tilt_servo.angle()-tilt_output)

AttributeError: 'tuple' object has no attribute 'cx'
请问大佬们 这个错误怎么修改啊？感谢