With one board and two lenses, one is standard lens and the other is wide-angle lens; CJ-OV528 module with half-duplex communication line, which is suitable for multi-point monitoring projects; It's a great camera for Arduino centered image recognition projects; Specifications: Input Voltage: 5V; Pixel: 300, 000; Resolution: 640 x 480, 320 x 240, 160 x 120; Uart Baud Rate: 9600~115200; Communication: RS485 and RS232; Photo JPEG compression; AGC, Auto Exposure, Automatic White Balance, Focus adjustable.