As a continuation to my Raspberry Pi and Arduino communication post, I thought I’d do the same but opposite way. This time, I thought it would be nice to make a proper Arduino library to make the process more streamlined.
To make communication more robust, I decided to implement a more formal communication over serial to enable applications that have some idea if a command sent to Arduino was successfully carried out or not, and also introduce basic error recovery if invalid commands or wrong number of parameters are received.
If you haven’t worked with Arduino libraries before, I suggest you to familiarize yourself with this basic tutorial or the other one at Arduino Playground. If you’re not familiar with AnalogWrite(), a quick peek to Arduino PWM Tutorial may also be in order.