DefendLineII

Features

• Includes Atmel ATmega1280 chip with 128k internal flash program memory clocked by 14.7456 MHz crystal
• Power supply: 3.3 Vdc, dual independent stabilized power sources (7-14 V unregulated input as main source, 0.8-14 V input as backup or battery source), interrupt driven power failure detection
• Four independent input lines for alarm sensors (PIR sensors, etc) and one line for tamper detection
• Two 10A 240 VAC relay outputs
• Four hardware serial interfaces for communication with GSM/Ethernet/Bluethooth/Zigbee/GPS modules, JPEG CMOS cameras etc. (One serial port is used by onboard USB-to-Serial FT232BL chip to simplify device configuration, flashing and debugging procedures but USB functionality may be disabled by a jumper so there will be four serial ports at your service)
• Dedicated I2C real time clock chip
• Dedicated I2C thermometer/thermostat chip
• Standard AVR ISP 10-pin connector for in-circuit flashing
• Standard JTAG 10-pin connector for in-circuit debugging
• USB connection via serial port emulation, Win/Linux driver support
• MicroSD slot for storing pictures, sounds etc
• I2C connector for interfacing with tilt/accelerometer/motion etc sensors
• Interface for 2×16 3.3V LCD display, backlight fading out feature
• Two buttons for toggling modes
• Three LEDs (green, red and blue) to indicate states, the first one is used for USB traffic indication, the last two could be programmed at designer discretion
• PWM driven interface to external speaker
• Four interfaces to external servo motors
• Pre-flashed bootloader allows to program the unit via USB, no need in external AVR ISP programmer
• Open source firmware unlocks literally unlimited potential of this unit
• Two extension connectors with 10 and 6 I/O lines

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