I wonder if you could help me, i have not as of yet got a 'raspberry Pi' nor have i any experience in the field before we start. I am currently in the process of making a little project for fun. The project is a small wind generator for a boat not very high powered purely to charge a mobile phone. The query i have about the raspberry pi however is, would it be possible to use the device as a multimeter for the generator to monitor the output current, voltage and also convert the voltage to a pre calibrated rpm or speed for accurately indicating the wind speed. Now the complicated part once this had been done would it be possible to broadcast the information via the nifty wifi adapter to be displayed on an iPhone for instance.
I am understandably going to purchase a raspberry pi and do some experiments but the other question is what else should i get would the 'scratch' pack be a good starter for some experiments? i do understand that i would most probably have to develop an app for the iPhone for this to work.