WIFI D1 mini - Data logger shield: RTC DS1307 with battery + MicroSD

With this Data Log Shield for WiFi D1 Mini board, can saving data to files on any FAT16 or FAT32 formatted SD card. The included RTC (Real Time Clock) can be used to timestamp all your data with the current time, so that you know precisely what happened when!
SD card interface works with FAT16 or FAT32 formatted cards.
Real time clock (RTC) keeps the time going even when the power disconnected. The coin cell battery backup last date and time.
RTC protected from wrong connecting of battery.

Pinout:
RTC:

• D1 - SCL
• D2 - SDA

CD card:

• D5 - CLK
• D6 - DO
• D7 - DI
• D8 - CS

Technical characteristics WIFI D1 mini - Data logger shield: RTC DS1307 with battery + MicroSD

• RTC DS1307 
• SD-card MicroSD 
• SD card Logic level 3.3V 
• Battery CR1220