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DS3231 AT24C32 RTC Module IIC Module
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Price: US$1.65   Submit a wholesale Inquiry
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Parameters
1 dimension: 38mm*22mm*14mm 
2 weight: 8g
3 working voltage: 3.3--5.5V
4 Clock Chip: high precision clock chip DS3231
5 Clock precision: 0-40 degree temperature range, the accuracy of 2ppm, the annual error of about 1 minutes
6 Take 2 calendar clock
7 Programmable square wave output
8 Real time clock generation seconds, hours, week, date, month and year of time, a leap year compensation validity to 2100 and provide
9 Chip built-in temperature sensor, the precision is + - 3 DEG
10 Memory chip: AT24C32 (32K storage capacity)
11.IIC bus interface, 400KHz (maximum transmission speed of working voltage is 5V)
12 Cascaded to other IIC devices, 24C32 address can be modified through short circuit A0/A1/A2, the default address is 0x57
13 Rechargeable batteries in LIR2032, ensure the system after power failure, the clock still normal walking
14 Packaging: individual anti electrostatic packaging

Wiring instructions (taking UNO R3 as an example)
SCL - A5
SDA - A4
VCC - 5V
GND - GND

Shipping list
1* DS3231 module

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