Let's Make Robots!

I'm getting sick of Sharps --Is there something better?

Alright, this is it... I am anti-sharp distance sensor. I spent over a week fighting noise on the power side which screwed with my RF reciever. I have fried them because thier pin-out does not match the configuration of a servo connector or the picaxe 28x board. Thier numbers jump all over the place. Now it seems that all four of the ones I have are "worn-out". By that I mean this:

High signal from pic to pic w/(2) pwr supplies?

So here we go:

Walter has (2) 7.2v  packs, one for data and one for servos. Each has a switch and can be turned on idependantly (manually). During the "start-up" routine, I need the main picaxe to know if and when the servos have been turned on. It would be like this:

I turn on the main brain. The LCD turns on and displays a message to tell you to "turn the servos on, please" --I need the main brain to know when you have turned them on. 

I just got another order of PCB's delivered, ones that I designed. New 3A power boards, IR beacons, on-board battery chargers but most importantly, an AWESOME new … Read more

Free Range Robots (IR Beacon) **UPDATED**

**Update 4.14.09***

OK, when you watch the video... 

First of all, it is like, 5 minutes -sorry. There is a point though promise, and that point starts at about 3:40 or so. Now, I can't stress enough, the code is wicked chunky as it was written in about 10 min. It is all "bang-bang" and not proportional at all. The final code should be about 10x faster, much more accurate with a lot less trial and error. For now, this is just proof of concept and indeed it has been proven. 


*** Update 9.27.09 *** BIG UPDATE BIG UPDATE BIG UPDATE!!!!  Well, it has happened! Walter has gotten his voice... I was a bit surprised however, he is American … Read more
Well, here we go... Please watch the video, it explains a lot.  ******Already an Update.... sigh****** I forgot to add some baby … Read more
After many, many tests and trial runs, I have started cleaning up Walter's electronics and mechanics to a state that is a little bit closer to what it will be when … Read more

Walter Line Follow

Just a quick look at the beginning of my line follow set up...

Navigation with (2) sonars Update 2 (with data)

*****Update 2.16.10*****

Got some data to start thinking about, guys. My thoughts of getting nice, even packs of 4 or 5 is a little out the window. To be honest, I tried to forget that I could see where the robot was facing and tried to make a decision where to go based on just the readings. I couldn't . Please note that I was seeing the readings on a LCD so left was above right not in a straight line. --Now that I think of it, I have no idea why I didn't line them up as it is a 16x2 display. Huh.

All readings were taken L to R

Explain PWM to me, please.

I just need a good breakdown. The eventual goal is to obtain higher (or much higher) torque from my motors but at lower speeds. I am to beleive that PWM makes slower motors but also weak motors. I need strong, slow motors.