COol. i liKE iT. How about pointing some of the sensors downward to look at what was already drawn, that way the bot would react to its own creation. MMM (No...
MMM
cbcampi@...
May 1, 2005 9:52 am
49086
I am working on a "Herbie" Photovore robot. I breadboarded it (with a backup sensor), and it wouldn't respond to the light sensors. I took away the backup...
Another idea of what you could do with this is to make a robot that would color other robots! Maybe even it could be made to color itself, in reaction to its...
What type of photo sensors are you using? I matters because you hook photo diodes up differently than photo resisters (LDR's). If you are using LDR's than...
... It suddenly came up into my mind, while reading your posting: The Artificial Chameleon!! OK, what's it? An RGB LED can show up an impressive range of...
Luca Crisi
klaus@...
May 1, 2005 3:09 pm
49090
Hello Kyle, Interesting and timely idea. With WCRG right around the corner, I wager that chaotic BEAM robots would fair well in the art competition. Further,...
Hi Wolfgang: Chaotic Beam robots would be great in the Arts and Innovation event... Any opportunity to see some creative robots is a great time, and the $40...
... I think the sensor I had in mind is the opposite of Dave's one: with a white LED in the center (not mentioned) and the cells around it, instad one cell and...
Luca Crisi
klaus@...
May 1, 2005 3:59 pm
49094
... You have caught me! Truth be told, I have not played with PSH enough to know how to add a lock-on indicator. I am sorry to say that I have yet to build or...
By coincidence, I have recently added a lock-on lamp to Wilf's prohead circuit. I tried sensing the drop in current to trigger the lamp, but that was not as...
The most likely problem is the battery. As you say, the sum of the motor voltages is equal to the battery and your measurements indicate the battery is low or...
Hi Scott, The problem is the switching waveform that is present at the midpoint of the LDRs coupled back by the 47pf caps (which seem a little small for this...
Hi Kyle, Thanks for contributing this idea! The waveforms do not have to be chaotic to be interesting. For example two head positioning arms controlling the...
Thanks, Wilf. Although the original circuit was working well for me, your modification seem to make it even more reliable. I had to reduce the caps to 47pf in...
Interesting idea Wolf, The open loop case is easy to understand. When the seek light cycle is active (PD2 anodes low), the two head circuits operate the motors...
Thanks to Wilf Rigter and George Simmons. However... The circuit is still not working right. The motors are running unpredictably, and the sensors are not...
Hello Myc, Appreciate the information. I picked up a PCB starter kit and will give it a go when the weather improves. Hadn't thought about drilling a thousand...
Hello Wilf, You are spot-on. The behavior is stochastic and probabilistic. This aims for loose control and hopes for emergent behavior. ... This is somewhat...
I am using (what I think are) CdS cells. They have a roughly round (kind of hexagonal) shape, and are mostly gray on top, with a little zig-zaggy line across...
Need more info on motor type, battery type, sensor type. Debugging is a process of isolating the problem by testing what bit works and what does not. With the...
Aha! but with CdS cells exposed to light their value drops to a few Kohms and with the LM 386 internal 75K input resistance to ground, the input levels should...
... My battery is a 9V "GP Supercell Super Heavy Duty". The voltmeter says it has 8.95V. The motors I am using aren't 100% percent identical, however they ...
I am not quite sure what you mean by "input level". Is that the voltage across the two pins of the sensor? That is what I measured earlier, but if you say it...
Thanks Wilf Rigter for helping me, but I need to go to sleep now (It's quite late over here in my time zone). Please try to find out which is the bad...
Hello all just a reminder of my usual monthly Buildfest, Saturday May 7th at my store in Brampton, Ontario. If you haven't attended before and you want more...
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