arduino uno

I have bought Xbee s2c modules for my project and I wish to transfer sensor data from one xbee to another in non-broadcast mode using arduino mega at transmitter side and arduino uno at receiver side. Please help me with the code for arduino mega and uno and the configuration parameters to be...

Hello, I am a beginner at using Arduino. I wish to do a very simple project. If a user turns ON a water motor pump, it should give a trigger to my Arduino UNO. Arduino will note the Motor ON time and date. If a user turns OFF a water motor pump, it should again give a trigger to my Arduino...

Hello everyone! I am looking for an Arduino Uno. If anyone has a used one, please contact me.

Hello all, I'm in the beginning stages of a project and am just learning how to use an Arduino Uno with a MAX7219 driver with an 8x8 LED RGB Matrix. I'm using someone's source code to just get a basic understanding of how to put all these pieces together and will then modify it as I need to...