- With this Data Log Shield for WiFi D1 Mini board, can saving data to files on any FAT16 or FAT32 formatted MicroSD 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:
D1 – SCL
D2 – SDA
D5 – CLK
D6 – DO
D7 – DI
D8 – CS