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Top 5 Positive Customer Reviews for rtc sd
Didn't work, no "ON" light on the board ! After some measuring found that the GND of the DS1317 and the SD-Card were not connected to the power GND ?! Board seems to be based on the Datalogger V1.0 shield of Adafruit adapted for Arduino Nano. Had to install a jumper wire (red circle) between two ground planes to make things work. Not recommended !
Good product, if you can do without documentation. Basically it's a standard (1307) RTC and a standard sdcard shield with default wiring. Already offers pin-holes for further I2C components and power supply.