First Real Look At My Ez-b Controlled Full Size Lis B9 Robot

I really enjoyed the video. The arm, and claw look fantastic! runs real smooth.

I think fame is taking over, and he takes advantage of the chance to show off when he sees the video camera. I am sure you have Ai built in which you don't know about. I wouldn't be surprised once he gets two arms, you don't find him playing the pinball machines. (you know how retired movie and tv stars are...LOL)

Be Well and I look forward, as always, to the next video.

Ron R

Lol, very entertaining. That whole video had me in stitches. Your B9 is definitely a show off.

The arm is looking and moving great, Dave. Real shame about the arm cover though. That had to hurt seeing that. But at least you know what the cause was so it won't happen again.

I'm not sure how you've got you commands/scripts set up in speech recognition, but it seems that B9 is hearing himself speak. If you haven't already, maybe an idea would be to add...

ControlCommand("Speech Recognition", PauseOn)[/code

commands in to the start of your speech recognition scripts when he talks. E4 did the same thing a couple of weeks ago. Funny thing, when I had the same project open on both the laptop and tablet, he would speak through one and hear himself on the other and start talking to himself. It was quite amusing. Anyway, it's just a Just a thought. 

Great video Dave. Thanks for making it.

P.S, I've got a script for you that you might find a use for to help "neddy" is it? to tell if it's afternoon or evening, so you can add the appropriate phrases where necessary.  I'll post it in a bit.

Here you go Dave....

if ($hour>-1 and $hour<12 )
#Replace this message with a GOOD MORNING sound file phrase.

Elseif ($hour>11 and $hour<18 )
#Replace this message with a GOOD AFTERNOON sound file phrase.

Elseif ($hour >17 )
#Replace this message with a GOOD EVENING sound file phrase.
endif

I use it in a connection init script so E4 says "Good morning" or whatever the time of day is when his EZ-B connects, but you could always use it in a speech recognition script if you wanted. It's just a bit of fun, and up to you if you want to use it yourself.

Dave, what may help to smooth the ADC input is a capacitor (input to ground) you will need to experiment with the value as too big a cap will mess up the readings by "slugging" the voltage too much.

Another way is to add a median filter subroutine - take 5 readings and place them in an array in ascending order (bubble sort) then extract the middle sample (array[3] in this case) this should help eliminate spurious readings. It would be best to take more than 5 samples, but then there may be some latency problems with the v4.

A median filter is useful for any input signals that are prone to noise and greatly improve the Sharp IR ranger readings for example.

Hope this helps

Tony

i love this robot, its creative origanal and very spectacular. keep up the good work!

Dave! The Robot is looking amazing! However, he may be developing a mind of his own. Better hope he doesn't mistake you for Dr. Smith! I'd wait a while before enabling any weapon systems (offensive OR defensive)! Love your work, sir. ~Mike

Thanks everyone. I'm glad you're enjoying my work. I truly appreciate your suggestions and help.

I've been working on the wavering ADC port problem today and have it fixed. I failed to mention that that these ports are connected to open switches. The idea is to have the always open momentary switches attached to the ADC ports and when closed the voltage difference will trigger scripts I have written. Turns out that the problem was that static was building up and causing the voltage to float around well above zero. It would get as high as 3 volts and trigger the scripts. To add insult, whenever an event would happen all the ports would flux and trigger other scripts. I added pull down resistors (10k ohm) between the signal wire and ground on each ADC port I'm using on the EZB and that did the trick. All ports are now holding at 0 volts till a switch is closed and then goes right to top voltage. Best part is when that port goes high the rest stay stable at 0 volts.

Pretty simple fix to what sounded like a pain in the neck problem. Nice one Dave.