CMUcam4

Yes, you got the idea. I think the pins on the CMUcam4 are labeled TXO and RXI. So, [TXO CMUcam4] -> [RXI Arduino] and [RXI CMUcam4 -> TXO Arduino].

Don't connect the DTR pin. That just allows you to reset the CMUcam4. When it's pulled low the CMUcam4 will go into the reset state. It's for reprogramming the CMUcam4 from the computer.

Your quick response is appreciated. Please, do you think I can initiate cmucam4 just like I did to cmucam3 from Arduino mega using

@mode=0;

void setup() {

Serial2.begin(115200);
initiate();

}

void loop {
//extract the mean here for use
}

void initiate() {
Serial2.print("RS");
Serial2.print("\r");
Serial2.print("GM");
Serial2.print("\r");
while (Serial2.available() <= 0) {
delay(300);
mode =1;
}
}
@
It seems not to be working right now.
Thank you for your help. I am sending from Singapore, where we have been making extensive use of your camera for a project.

Hi Kwabena, I managed to get the camera working, but I have another question, how do change the default baud rate from 19200 to say 115000 using the Serial.print("") format, i tried Serial.print("BM 1152000\r") and it does not work. Your dedication to this forum is appreciated. Regards.

Hi,

Um, we have a serial interface library for the Arduino. It's not fully tested and has some bugs. But, it should work right off the bat for you. You don't have to implement the serial protocol.

I'm working on getting that done soon. Right now I'm putting the final touches on the 30 FPS firmware we have for the camera. I have to figure out some of the register setting magic for it...

Thanks,

Hi Kwabena,

I recently got a hold of a cam4 and arduino mega the other day and I want to try some of the examples you have given us in the serial interface library.

I placed the cam4 on top of the the arduino, however I could not upload one of your examples specifically the manual paparazzi code into the arduino. It would hang while uploading and I am not sure why.

After going through the forum I found this thread and it seems this will help.

It seems I have to do some wiring to connect the cam4 to the arduino.
As you stated above: "Yes, you got the idea. I think the pins on the CMUcam4 are labeled TXO and RXI. So, [TXO CMUcam4] -> [RXI Arduino] and [RXI CMUcam4 -> TXO Arduino]."

Where on the arduino board do we wire it to?
I have uploaded a picture of where I think it should go however that slot is already taken by the cam4.

Also which ground point should i use on the arduino?

Thanks.

Hi Derek,

Please check you email.

Thanks,

Hi, I need connect the arduino uno to cmucam4 please can you add a picture to do that?
Thanks!

Um, in what way do you wish to connect the CMUcam4? It is compatible to the Arduino as a shield... so, you can just put it on top of the Arduino.

Have you read the main page of the Arduino Interface Library yet? It details exactly what you need to do. Please take note that the regular Arduino regular only has one serial port. Please read the Arduino Interface Library documentation carefully about the implications of this.

Or, just hook up 5V power, GND, RX, and TX lines and you are good to go. This way you don't have to mount it on top of the Arduino.

Thanks,

Um, in what way do you wish to connect the CMUcam4? It is compatible to the Arduino as a shield... so, you can just put it on top of the Arduino.

Have you read the main page of the Arduino Interface Library yet? It details exactly what you need to do. Please take note that the regular Arduino regular only has one serial port. Please read the Arduino Interface Library documentation carefully about the implications of this.

Or, just hook up 5V power, GND, RX, and TX lines and you are good to go. This way you don't have to mount it on top of the Arduino.

Thanks,