*Calendar alarm clock with two
*Programmable square-wave output
*Real time clock generator seconds, minutes, hours, day, date, month and year timing and provide valid until the year 2100 leap year compensation
*Chip temperature sensor comes with an accuracy of ± 3 degree Celsius
*IIC bus interface, the maximum transmission speed of 400KHz (working voltage of 5V)
*Can be cascaded with other IIC device, 24C32 addresses can be shorted A0/A1/A2 modify default address is 0x57
*With rechargeable battery LIR2032, to ensure the system after power failure, the clock move any natural normal
Dimension: 38*22*14mm (L*W*H, Approx)
Operating Voltage :3.3~5.5V
Clock Chip: High-precision clock chip DS3231
Clock Accuracy: 0-40 degree Celsius range, the accuracy 2ppm, the error was about 1 minute
SCL → A5
SDA → A4
VCC → 5V
GND → GND
1 * Module
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Please kindly note thatthe combined shippingis not providedbecause the shipping fee is calculated by weight. Also, the each additional item meansexactlythe the same color and size.
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