A data logger built on using the adafruit Datalogging Arduino Shield on an Arduino Mega 2560 R3. 3 types of different units can be measured right now: Current, Voltage, Temperature.

This is a TTL Data logger that writes the data to an SD-Card. The used hardware is a Arduino UNO and a micro SD-Card adapter (OPEN-SMART microSD Card Adapter). The wiring between the SD-Card adapter ...

There’s also an SD card thrown in for good measure, making this one of the best tracking and data logging shields for the Arduino.

There’s also an SD card thrown in for good measure, making this one of the best tracking and data logging shields for the Arduino.

How do you save data from an Arduino-based device to a memory card? Fortunately, a microSD card and SD card breakout board now make this an easy task.

Arduino devices have had the option of a GSM linkup for awhile, but getting that cellular link to truly strut its stuff hasn't always been easy, even for those of us who'd be inclined to program ...

The GSM Shield also includes a Telefonica SIM card that includes a worldwide data tariff which can be used anywhere there is a cellular signal.