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Clock Shield is a perfect start for beginners of Arduino world. Contains most common resources for a basic electronic project, like buttons, sensors, buzzer and display. After you're done with the soldering task, it turns out to be a geek style alarm clock which can auto adjust the brightness of display and keep in synch with real world time. Features:
7-Segment Display 4-Digit (TM1636 Driver IC) DS1307 Real time clock inside 5V DC buzzer: Alarm clock in geek style Photoresistor: Induction of ambient light intensity Thermistor: detect ambient temperature 4 LEDs in blue, green, red and red Battery Holder: provides power to RTC IC when external power is off 3 temporary buttons Arduino compatible All-in-one platform for beginners