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SparkFun OpenLog solderpad

Open Source Hardware Datalogger

Recent activity:

  • 9600 updated7 years ago
  • psd pushed7 years ago
  • psd pushed7 years ago
  • psd pushed7 years ago
  • psd pushed7 years ago

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OpenLog is an open source project to create a simple to use data logger.

OpenLog v1 is stable but only supports FAT16 and up to 2GB. OpenLog v2 is a bit buggy but supports FAT32 and SD cards up to 16GB.

The FAT16/FAT32 firmware was originally designed by Roland Riegel and is released under GPL v2. OpenLog v2.0 and above uses sdfatlib written by Bill Greiman and is released under GPL v3. The OpenLog firmware was created by SparkFun Electronics.



Bill of Materials

Designator Value Description
C1 1uF Capacitor
C2 0.1uF Capacitor
C3 0.1uF Capacitor
C10 0.1uF Capacitor
D1 Blue LEDs
D3 Green LEDs
JP1 Serial Connection
JP2 Header 4
Q1 16MHz Resonator
R1 1K Resistor
R2 10K Resistor
R6 1K Resistor
U$1 LOGO-SFESK Spark Fun Electronics PCB Logo
U2 3.3V MIC5205 Voltage Regulator LDO
U3 microSD Socket microSD Socket



This project is © SparkFun Electronics, and is published under the terms of the Creative Commons Attribution-ShareAlike 3.0 Unported licence.