Buy an Axon, Axon II, or Axon Mote and build a great robot, while helping to support SoR.
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I also want the Webcam to be able to be on the robot and communicate to the computer wirelessly.
The IOGEAR Wireless USB Hub & Adapter kit allows your desktop or laptop to wirelessly communicate with USB printers, scanners, cameras, game controllers, flash drives, external hard drives, and other USB devices. It complies with the Multi-band OFDM Ultra Wide Band (UWB) 1.0 specification, and provides users with transmission speeds of up to 480Mbps. At 480 Mbps the IOGEAR Wireless USB Hub is faster than all wireless technologies including 802.11n. Because it is Plug-and-Play, the IOGEAR Certified Wireless USB Hub takes almost no time to set up and get running. It is the perfect combination of convenient Plug-and-Play USB connectivity, blazing fast data transfers and the benefits of going wireless.
PC is a USB host, microcontrollers aren't
A wireless USB hub might make things cheaper. At only $88.26 it is cheaper than BlueSmirf and USB Bluetooth Dongle, plus you can also plug a regular $20 Webcam and do remote processing on the PC, wireless programming to the Axon (or Roboduino), data logging on the fly and so on! This is SO COOL!!!
The standard USB uses a master/slave architecture; a USB 'Host' acts as the protocol master, and a USB 'Device' acts as the slave. Only the Host can schedule the configuration and data transfers over the link. The Devices cannot initiate data transfers, they only respond to requests given by a host.