Arduino: Frequently Asked Questions

For basic Arduino questions try: http://www.arduino.cc/en/Main/FAQ

For basic Arduino Ethernet questions try: http://www.arduino.cc/en/Reference/Ethernet or the Arduino forum

Here's a great introductory tutorial to Arduino and Pachube by C4C_Dave that should get you going with Arduino, so make sure you've gone through the whole thing if you're having any difficulties.

Otherwise....

Q. I am having trouble connecting Arduino and Processing to Pachube using the Pachuino library. What should I do?

A. First, make sure that Processing, Firmata and your Arduino are communicating correctly using the Processing Arduino library. If you haven't got this working then Pachuino will not work either. Then make sure you have the EEML library installed. Full instructions are on the Pachuino page. If you are getting "all zeros" in your values, try the solution listed here or here.

Q. I am having trouble connecting Arduino with an Ethernet Shield to Pachube. What should I do?

A. First, make sure you are all set up using Arduino with your Ethernet shield using the most basic examples included with the library, using the following info:

http://arduino.cc/en/Guide/ArduinoEthernetShield
http://arduino.cc/en/Main/ArduinoEthernetShield
http://arduino.cc/en/Reference/Ethernet

You'll need to understand what a MAC address is, how to set up your router, select an IP address, and be aware of which pins are rendered non-functional when using the ethernet shield. If you are using the DCHP library, then get the basic DHCP examples working before you attempt to connect to Pachube. Once you've got the basic code working fine, and try doing something similar but connect to Pachube. If you still have problems post in the Pachube forum, and include the code that you are having problems with.