Arducam OV2640 motion detector

[rmcncal]

Hi

I'm trying to get a OV2640 on an Arducam ESP8266 working with a PIR motion detector to take a picture when it detects movement. I have the motion detector trigger wire connected to GPIO12 and running the code below.

I use

attachInterrupt(12, intruder_detect, CHANGE); in setup()

on pin 12 to trigger an intruder detection event which then captures a photo.

I get in my serial monitor (after pressing reset a couple of times). No pictures are ever captured Code is a modified version of ArduCAM_ESP8266_V2_OV2640_Capture2SD along with interrupt for motion detector. Any ideas why it's not working?

2dN,4lMMØlb8óÿArduCAM Start! 85 SD Card detected! OV2640 detected. 2dO,4lMMØlb8óÿArduCAM Start! Intruder detected star Capture ¶Eô|vAM¬tè4C(ArduCAM Start! 85 SD Card detected! OV2640 detected. $lÍ+`,lløp$:òûArduCAM Start! Intruder detected star Capture ¿„FJ ô@HàþArduCAM Start! 85 SD Card Error OV2640 detected.

include

include

include

include

include "memorysaver.h"

if !(defined ESP8266 )

error Please select the ArduCAM ESP8266 UNO board in the Tools/Board

endif

//This demo can only work on OV2640_MINI_2MP or ARDUCAM_SHIELD_V2 platform.

if !(defined (OV2640_MINI_2MP)||(defined (ARDUCAM_SHIELD_V2) && defined (OV2640_CAM)))

error Please select the hardware platform and camera module in the ../libraries/ArduCAM/memorysaver.h file

endif

// set GPIO16 as the slave select : const int CS = 16; //Version 2,set GPIO0 as the slave select : const int SD_CS = 0; ArduCAM myCAM(OV2640, CS);

int speakerOut = 12;//Piezo buzzer's positive terminal is connected to digital pin 9
byte names[] = {'c', 'd', 'e', 'f', 'g', 'a', 'b', 'C'};
int tones[] = {1915, 1700, 1519, 1432, 1275, 1136, 1014, 956}; byte melody[] = "2d2a1f2c2d2a2d2c2f2d2a2c2d2a1f2c2d2a2a2g2p8p8p8p"; // count length: 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 // 10 20 30 int count = 0; int count2 = 0; int count3 = 0; int MAX_COUNT = 24; int statePin = LOW;

const int motionSensorPin = 12;

void siren();

volatile byte intruder;

void myCAMSaveToSDFile(){ char str[8]; byte buf[256]; static int i = 0; static int k = 0; static int n = 0; uint8_t temp, temp_last; File file; //Flush the FIFO myCAM.flush_fifo(); //Clear the capture done flag myCAM.clear_fifo_flag(); //Start capture myCAM.start_capture(); Serial.println("star Capture"); while(!myCAM.get_bit(ARDUCHIP_TRIG , CAP_DONE_MASK)); Serial.println("Capture Done!");

//Construct a file name k = k + 1; itoa(k, str, 10); strcat(str, ".jpg"); //Open the new file file = SD.open(str, O_WRITE | O_CREAT | O_TRUNC); if(! file){ Serial.println("open file faild"); return; } i = 0; myCAM.CS_LOW(); myCAM.set_fifo_burst();

if !(defined (ARDUCAM_SHIELD_V2) && defined (OV2640_CAM))

SPI.transfer(0xFF);

endif

//Read JPEG data from FIFO while ( (temp !=0xD9) | (temp_last !=0xFF)){ temp_last = temp; temp = SPI.transfer(0x00);

//Write image data to buffer if not full if( i < 256) buf[i++] = temp; else{ //Write 256 bytes image data to file myCAM.CS_HIGH(); file.write(buf ,256); i = 0; buf[i++] = temp; myCAM.CS_LOW(); myCAM.set_fifo_burst(); } delay(0);
}

//Write the remain bytes in the buffer if(i > 0){ myCAM.CS_HIGH(); file.write(buf,i); } //Close the file file.close(); Serial.println("CAM Save Done!"); }

void setup() {

attachInterrupt(12, intruder_detect, CHANGE);//Initialize the intterrupt pin for the motion sensor (Arduino digital pin 2)

uint8_t vid, pid; uint8_t temp; Wire.begin();

Serial.begin(9600); Serial.println("ArduCAM Start!"); //Serial.begin(115200);

//set the CS as an output: pinMode(CS,OUTPUT);

//initialize SPI: SPI.begin(); SPI.setFrequency(4000000); //4MHZ

delay(1000); //Check if the ArduCAM SPI bus is OK myCAM.write_reg(ARDUCHIP_TEST1, 0x55); temp = myCAM.read_reg(ARDUCHIP_TEST1); Serial.println(temp); if (temp != 0x55){ Serial.println("SPI1 interface Error!"); while(1); }

//Initialize SD Card

if(!SD.begin(SD_CS)){ Serial.println("SD Card Error"); } else Serial.println("SD Card detected!");

//Check if the camera module type is OV2640 myCAM.wrSensorReg8_8(0xff, 0x01); myCAM.rdSensorReg8_8(OV2640_CHIPID_HIGH, &vid); myCAM.rdSensorReg8_8(OV2640_CHIPID_LOW, &pid); if ((vid != 0x26 ) && (( !pid != 0x41 ) || ( pid != 0x42 ))) Serial.println("Can't find OV2640 module!"); else Serial.println("OV2640 detected."); myCAM.set_format(JPEG); myCAM.InitCAM();

}

void loop() {

}

void intruder_detect()//This function is called whenever an intruder is detected by the arduino { intruder++; Serial.println("Intruder detected");

myCAMSaveToSDFile();

}

[supprot]

@rmcncal Hi, Your SD card is error, The GPIO12 is the MISO signal.

Best regards, ArduCAM support team.

[rmcncal]

Hi

The SD card is fine as it captures photos when I run ArduCAM_ESP8266_V2_OV2640_Capture2SD it's when I modify this sketch to use a PIR motion detector that it doesn't work, I have tried GPI02 & GPI016 pins without success, do you know which pin I can use to process an output signal from a PIR motion detector? I use an interrupt to capture the output signal to take a photo.

[supprot]

@rmcncal Hi,

If you use both SD card and camera module on our ArduCAM ESP8266 UNO board, you will don't have other GPIO pin for PIR input.

Let us know if you need more help. Regards, ArduCAM support team.

[watkinsllc]

Hello,
I am trying the same thing and have found 2 issues. One is the wifi ESP8266 which is not recognized when you type AT in the serial monitor at any baud rate. And 2. the PIR cannot be used if you want to use the SD card with this board. So, do you recommend using the Arduino UNO R3 with a ESP8266-01 with the PIR and OV2640. If so, what is the pinout for this and what programs should be used? Thanks