This is my small robot powered by a tl-wr 703 running openwrt with a bit of hacking and tweaking these can become some nice little development boards runinng linux with wifi onboard and a handfull of GPIOs at the moment ive got the little guy up and running with a simple web interface as a proof on concept im planning on building a better web interface and attaching a webcam to its handy usb port for some POV style driving and giving it some automation once ive found some more GPIO's to break out
Components
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cheap chinese robot chassis
great little base for robot projects and cheap as chips
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tl-wr 703
small pocket router built for the chinese market
I have managed to find 4 spare GPIO's on the tl wr703 and have gotten the robot built up with these i do still have access to the 2 GPIO's for the serial port however i am doing what i can to leave these alone just in case i brick the little router its nice to have easy access to a terminal, ive built up a simple web interface to turn all of the GPIO pins on and off these are all controlled through cgi scripts stored on the web server i pull these into an iframe on the main control page to keep it responsive.
Next i will be building a better interface for the control of the vehicle and getting some new batteries so that the motors actually work properly there a bit gutless at the moment and the left wheel needs a little push to get it moving.