The 6-pin SD Card connector is actually an SPI bus, and their pin designation is described in the table above. In this tutorial, you will learn how to interface the SD Card Module to the Arduino Mega via a Sensor Shield.įirstly, let's take a close look at the SD card connector on the Mega Sensor Shield. Interfacing SD Card Module to Expansion Shield MEGA Sensor Shield V2 for MEGA 2560 Example: It is possible to use +6 volts if ALL the attached devices are the same such as Servos with that rating.ĭedicated Connectors (pins left to right, top to bottom, as the above picture) Usually, this is +5V because most external devices require it. ![]() Using an external supply allows more current than the Arduino or Mega can supply, such as current for control of many servos or Relays, and other attached devices. ![]() External power Ground must also be connected to the blue terminal strip.
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