M5Stack Programmable Real-time Clock Module HYM8563 Calendar/Timing Chip I2C

Description UNIT RTC is a programmable real time clock module integrated HYM8563 low power CMOS real time clock calendar chip using I2C communication interface full coverage case can effectively protect the circuit making its operation more stable Applicable to a variety of embedded devices instruments and instruments as a system clock Role of RTC Most MCUs are built in timers which usually start working automatically when the hardware is powered on and reset when the hardware is powered off The built in timer can handle some simple timing tasks but if we want to implement data timestamp recording clock alarm clock and other time span functions a system power independent clock RTC is the best choice Product Features Support second minute hour day month year time data reading and writing 32 768kHz high precision clock crystal greatly reducing the time errorLow power consumption coin battery can work continuously for years With century mark I2C communication interface Specification Clock chip HYM8563Crystal Frequency 32 768kHzCommunication interface I2C addr 0x51 bus max speed 400KbpsPower supply voltage 5V DCNet weight 4 1gGross Weight 8 3gProduct Dimensions 48 x 24 x 8mmPackage Size 67 x 53 x 12mmApplications Clock alarm clockPower down time synchronizationPackage included 1 x Unit RTC1 x Coin cell battery 38mAh 1 x HY2 0 4P cableSchematic Related Links DatasheetHYM8563Example Arduin0M5 BM8563 Lib