Let's Make Robots!

serial communication

Generates a graphic based on a csv string from the serial port
Once in a while we need to visualize the data coming out of sensors or functions we have in the microcontrollers.To do that normally we send the data through the … Read more
Map's a robots enviroment, produces shortest path movement
This is my first Visual C# Program.   After a few attemps of trying to get wavefront mapping working on an Arduino, I decided to try simulate it on a PC. After … Read more

A not so dumb but practical motor controller

I've been working on Leo's motorcontroller and reading a lot lately on bots.  It got me to thinking about using multiple uControllers to do multitasking.  I've slimmed down my original motor controller concept to just a PicAxe 14M, a L293D and some resistors. What makes this motor controller different is that it does more than just control the speed and direction of two motors for an indefinite amount of time.  It's possible during setup to make it that each command only last for five seconds or increments of five seconds.

Controls a small RC car via PC with image processing
Small project to control an RC car via pc. I've placed a small RF pinhole camera in the car so I could be used for manual driving and for image processing. Here are … Read more

How to hook up two serial outputs to one serial input

Hey all,

 So I'm working on a project where I'm using two processors and one of the things that I want to do is use one bluetooth device and have two microprocs communicate with it or send data through it. Of course this is not at the same time.

One chip would be the main com device, the other would send stored data when instructed to. I don't want to use one device as a passthrough as this would seem a little inefficient. so I came up with a schematic of what I think might work.