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my bluetooth car, use AT89S52 + H-bridge + HC-05, remoted controlled by APP which was written myself on my xiaomi phone achieved a dream when I was a child. here is the video: http://v.youku.com/v_show/id_XODYyOTM3OTU2.html
This is a companion discussion topic for the original entry at https://community.robotshop.com/index.php/robots/show/my-second-robot-svbr-2