JY-MCU DS1307 Real Time Clock Module w/ Battery - Blue
Model DS1307 Quantity 1 Color Blue Material Glass fiber Specification DS1307 chip Onboard AT24C32 IIC port EEPROM storage 20 ppm 32.768KHz crystal oscillator Features Solder 1 x CR927 3V battery with reversed polarity protection Application DIY projects Packing List 1 x Module