Safety Features
High quality Atmega microcontroller development board, The DIP40 locking device, easy to remove the ATMEGA microcontroller for reuse, 8 independent LED, 1 * 4 independent keys, 4* 4 keypad matrix, RTC DS1307 with battery connector, AT24C02 I2C external memory, The MAX232 chip RS232 communication, 16X2 LCD interface (character display), All IO ports pin have extraction and clearly marked, On Board Power supply 3.3V, 5V 12V, GND.