Security-Cam

Security-cam continuously compares the previous image and the current image. If an images changes by more than a preset threshold, the image is saved as a jpeg to the MMC card. This is a great project to leave somewhere for a long time in hopes of finding an interesting surprise.

The release version of security-cam had a bug that has since been fixed. Attached below is an updated firmware image and a replacement main.c file with the fix. The fix was committed into subversion at r503.

Setting Up Security Cam

• You will need the following:
  • CMUcam3, with power and a serial cable
  • MMC or SD card
  • MMC/SD card reader on your PC
• Format the Memory Card using the FAT filesystem
  • DO NOT USE FAT32 which is the Windows Default
• Flash the security-cam.hex firmware file onto the CMUcam
• Turn off your CMUcam3 and bring it to the area that you want to monitor
• Insert the MMC card and turn the CMUcam3 on
  • Make sure you see the red led blink if there is motion in front of the camera