HR0039 Tiny RTC I2C modules （No battery inside ）

Description:

DS1307 I2C real time clock chip (RTC)

24C32 32K I2C EEPROM memory

Using LIR2032 rechargeable lithium battery with charging circuit

Solve the problem of no literacy of the DS1307 with backup battery

Support timing 1 year of the DS1307 after fully charged

Leads to the DS1307 clock pin provides a clock signal for the microcontroller

Other I2C devices can be cascaded

Size: 27mm x 28mm x 8.4mm

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