Features:

• The SparkFun OpenLog with Headers is an open source data logger that works over a simple serial connection and supports microSD cards up to 64GB.
• The SparkFun OpenLog uses an ATmega328 running at 16MHz thanks to the onboard resonator.
• VCC Input: 3.3V-12V (Recommended 3.3V-5V)
• Log to low-cost microSD FAT16/32 cards up to 32GB
• Simple command interface
• Configurable baud rates (up to 115200bps)
• Preprogrammed ATmega328 and bootloader
• Four SPI pogo pins
• Two LEDs indicate writing status
• 2mA idle, 6mA at maximum recording rate
• Pre-soldered Headers