Wireless and radio Technical discussion about wireless communications devices, GPS receivers, and other radio applications. Resources Links to suppliers, software, tutorials, and more. Electronics Technical discussions about electronics, sensors, circuit design, and testing. Upcoming events Information about robot contests, conferences, and meetings, around the world. Share your projects Show everyone what you've built! Don't forget pictures of your creations. Miscellaneous A place to talk about anything that does not fit in one of the above categories. Software and microcontrollers Technical discussions about software, control algorithms, and programming languages. Mechanical design and actuators Technical discussions about mechanical parts including chassis, motors, servos, wheels, and more.