Frank Wood

[Frank Wood]

Hi folks, I started out a classroom project where I started with a lightweight robot then as the bot and power demands grew; I ended up where I had to use heavy duty Motor controllers (20amp). I was using bluetooth to connect an XBox controller to a raspberry pi and the pi connected to Simple Motor Controllers (Pololu) using serial communications. All of the hardware was mounted on the bot. It worked long enough to give the kids proof of concept, but it was very flaky. Not just the bluetooth part but serial communications code seemed to work perfectly for a while then not. I put the project aside for …a year. Now I would like to do this right. I want a more robust communication system with the robot so that I can send commands and rely on some autonomous code on board the bot for safety (stopping when encountering an obstacle. Any ideas of a general design?

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