or from some external source. I plan to include the data source in the potting in most cases, but if I had to use an external source, at least the data would survive even if the data source didn’t. Exactly what gets logged will depend on the specific application. In the next version I plan to include a small area of empty pads on the PCB with connections to the ATmega for analog input, serial, and I2C, which will support a wide variety of potential sensors. Now I have a new challenge: finding the limits of this logger.
To learn more about this project, explore other great creations, and get the hard-to-find parts you need, visit RadioShack.com/DIY.