DS1307 is a real-time chip of DALLAS company, which adopts I2C protocol to communicate with SCM, and there was this kind of interface on Arduino, therefore is very convenient to link with each other. DS1307 has a programmable waveforms output, it can be used to drive LED lights or trigger a certain event as a break-off, but be careful when you use it to take some kind of high-power module. We design the real clock module to pin out the I2C interface of Ds1307 and programmable waveforms output interface SQW are connected, but usually, we will only use the I2C interface to realize the basic set of the clock/read function. Note, this module must be installed on the battery can work normally. The battery is button batteries (type CR2032 will be better), the positive upward:
Features
- The real-time clock counts seconds, minutes, hours, dates, months, day, years, and leap years to 2100
- 56-byte general-purpose NV RAM
- Accuracy > 2 minutes/month at 25oC
- Automatic power management circuitry
- 2-wire serial interface
- The programmable square wave output signal
- Uses <300nA in backup mode with oscillator running
Package Includes:
- 1 x RTC DS1307 Real Time Clock in Pakistan
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