Created: Dec 22, 2016
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Have you ever wanted to build your own simple camera? This circuit is a serial camera used to capture images using Arduino UNO. The camera used is the uCAM-II; it is a serial camera that is highly integrated that it can be attached to any host system that requires video camera or JPEG compressed images. The module has an on board serial interface (TTL) that allows direct communication to any microcontroller UART or PC COM port. It can transfer up to 3.68Mbps of JPEG still pictures or raw images. It has an on-board VGA color sensor and RAW/JPEG CODEC for different resolutions and a built in color conversion circuits for 16-bit, CrYCbY, 8-bit gray, 16-bit RGB or standard JPEG images.
The circuit has an Arduino UNO, Micro SD card Breakout board, key button module and the uCAM-II camera. The camera can operate at 5V DC supply. The microSD card breakout board has an on board 3v regulator and a 3v level shifting, it means that you can use this with ease on either 3V or 5V systems. Since the SD cards require a lot of data transfer, the SPI pin of the microcontroller board gives the best performance. The pin connections for the SD card can be the same with other classic version of Arduino such as Duemilanove and Diecimila. The CD pin in the breakout board is for the card detect configuration. When a card is inserted it is shorted to the ground, a pull up resistor (10kΩ) is connected to the pin for card detection when a card is inserted. The key button module is used for pressing when you want to capture an image and is a 5V operated digital module.
The design is not limited to still JPEG images, it also be configured to capture videos. It can be used as camera that capture images at a certain time or a small camera you can place for recording a certain amount of time. The design can still be enhance by adding wireless application like controlling it remotely using Wi-Fi or Bluetooth.