We will perform the connection of the Tiny Arduino module RTC I2C DS1307 has a real time clock per I2C protocol and an Eeprom memory for storage I2C EEPROM 24C32 32K.
Many thought for a wireless module needs a real-time clock, if you can make requests to a local server via UDP ip, but there are certain applications in which in which there are not always Internet connections and time stamp is required .
Recommended: ESP8266 based wireless NTP server No internet connection needed
Tests
The connection to the module ESP8266 01 via 2-wire I2C protocol by GPIO0 and GPIO2 is done, the strategy initially updated MRTC time and then proceeds to make the impression on the serial terminal
Test Module
Terminal Serial
Circuit
Download
Recommended
Youtube Channel
PDAControl