Optimised for battery life by utilising the ATmega’s power down sleep mode. This extends battery life by many times… I can now run my data logger on a single 9V NiMH battery and keep it topped up with a solar panel.
Any number of analog pins
Any time step
Provides for sensor calibration using a simple linear model (i.e. to convert from analogRead value to whatever you want)
You can download it here. It currently does not handle digital inputs, but this would be easy to change. Please let me know if you use it and/or can think of any improvements. Enjoy!