"Can't find OV2640 module!" #332
Description
Hello,
I'm trying to get an Arducam MINI 2MP OV2640 to work with my Arduino UNO which is connected to a microSD shield. I connected both the microSD-shield and the Arducam to the pins of the Arduino UNO,
After some trial and error, I am getting the error message "Can't find OV2640 module !" which comes from the following part of the example code:
ArduCAM_Mini_Capture2SD
`void setup(){
Wire.begin();
uint8_t vid, pid;
uint8_t temp;
Serial.begin(115200);
Serial.println(F("ArduCAM Start!"));
//set the CS as an output:
pinMode(SPI_CS,OUTPUT);
// initialize SPI:
SPI.begin();
while(1){
//Check if the ArduCAM SPI bus is OK
myCAM.write_reg(ARDUCHIP_TEST1, 0x55);
temp = myCAM.read_reg(ARDUCHIP_TEST1);
if (temp != 0x55){
Serial.println(F("SPI interface Error!"));
delay(1000);continue;
}else{
Serial.println(F("SPI interface OK."));break;
}
}
//Initialize SD Card
while(!SD.begin(SD_CS)){
Serial.println(F("SD Card Error!"));delay(1000);
}
Serial.println(F("SD Card detected."));
Serial.print(" vid: ");
Serial.print(vid);
Serial.print(" pid: ");
Serial.print(pid);
#if defined (OV2640_MINI_2MP)
while(1){
//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 != 0x71 ) && (( pid != 0x1c ) || ( pid != 0x42 ))){
Serial.println(F("Can't find OV2640 module!"));
delay(1000);continue;
}
else{
Serial.println(F("OV2640 detected."));break;
}
}
#elif defined (OV3640_MINI_3MP)
while(1){
//Check if the camera module type is OV3640
myCAM.rdSensorReg16_8(OV3640_CHIPID_HIGH, &vid);
myCAM.rdSensorReg16_8(OV3640_CHIPID_LOW, &pid);
if ((vid != 0x71) || (pid != 0x4C)){
Serial.println(F("Can't find OV3640 module!"));
delay(1000);continue;
}else{
Serial.println(F("OV3640 detected."));break;
}
}
#else
while(1){
//Check if the camera module type is OV5642
myCAM.wrSensorReg16_8(0xff, 0x01);
myCAM.rdSensorReg16_8(OV5642_CHIPID_HIGH, &vid);
myCAM.rdSensorReg16_8(OV5642_CHIPID_LOW, &pid);
if((vid != 0x56) || (pid != 0x42)){
Serial.println(F("Can't find OV5642 module!"));
delay(1000);continue;
}
else{
Serial.println(F("OV5642 detected."));break;
}
}
#endif
myCAM.set_format(JPEG);
myCAM.InitCAM();
#if defined (OV2640_MINI_2MP)
myCAM.OV2640_set_JPEG_size(OV2640_320x240);
#elif defined (OV3640_MINI_3MP)
myCAM.OV3640_set_JPEG_size(OV3640_320x240);
#else
myCAM.write_reg(ARDUCHIP_TIM, VSYNC_LEVEL_MASK); //VSYNC is active HIGH
myCAM.OV5642_set_JPEG_size(OV5642_320x240);
#endif
delay(1000);
}`
and from ArduCAM_Mini_2MP_OV2640_functions
#if defined (OV2640_MINI_2MP) while(1){ //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 != 0xB6 ) && (( pid != 0x00 ) || ( pid != 0x42 ))){ Serial.print(F("ACK CMD Can't find OV2640 module!")); Serial.print("vid: "); Serial.print(vid); Serial.print(" pid: "); Serial.println(pid); delay(1000);continue; } else{ Serial.println(F("ACK CMD OV2640 detected."));break; } }
I changed the values (vid 0xB6, pid 0x00, and pid 0x42) and problems are still persisting. When I check my serial monitor, all I see are dots. I made a chart of the values I have gotten, and the values I need.
___ | EXPECT | values | need
VID | 0x26 | 38 | 0x69 105
PID | 0x41 | 65 |
PID | 0x42 | 65 | 0x1C 28
VID | | | 182
PID | | 0 | 0