Hello Wilf, Much obliged for the help. Due to motor noise, I added the 100K resistors back between the comparator output and the motor Nvs' inputs. Other than...
... Depends upon the gear reduction. If you have the same Escap MU915L that Solarbotics once sold, these are 181:1. They spin at 76 RPM at 5V, so one can...
... that ... so ... tnx for the info...i guess thats what Tilden used in his Vbug walkman... :) well , thats a fast RPM.... 73... :) was looking for THAT info...
... No, I did not. The circuit looked so simple that I did not think it was needed. Live and learn! ... I took the panel off and measured again. It was showing...
... seconds. ... in). Does it ... If I move the solar panel closer to the lamp, like an inch away from the 100Watt lamp, the motor kicks in just fine. ... ...
Hey All, David, I appreciated your patent editorial. The worst type of patents are the ones that some companies files "defensively" that only have the purpose...
... Solar Cell (SC) 1- to the circuit Gnd (-), SC1+ to SC2-, SC2+ to the circuit V+. Why you would get negative voltage is beyond me. The total looks about...
hi guys, ... I think this is a little misleading. I'd be willing to bet its the ammount of current the circuit can supply thats the problem(not the solar...
Hello Eric, You are right. I neglected to consider that the motor consumes more current when loaded. That is, as you say, it uses less power when held versus...
... With different colors specifically and with minor differences generally, the FLEDs trigger voltage varies. By "my experience", I mean the tests Joe and I...
The solderless version of the WASP robot kit is finally available. Took forever to do the manual (i know it's easier, but took longer because of school and...
Hi group, I accidentally found a site selling basic electronics and science goods in the UK - www.mutr.co.uk - Am I right in thinking that these motors (-...
Hi Wolfgang, I still think you may be overlooking something. ... the real question is, Is the FLED flashing? Also, something I didn't see mentioned before, is...
Holy cows! You guys are awesome! I am going to try swapping out the 3904 with a 2n2222. Only problem is, I get these choices of 2n2222 at RadioHack.com: ...
... Yes, possibly. I can see this happening with a battery, as you describe in your chimes. Just enough current to stay latched. Would it happen with 8400uF...
Hello Matt, Matt, could you test something for us? If you could. please short the storage capactors so that they are around 0V. Place the Symet in lighting...
Thanks for that David, very good prices. The type of motors used in these units are used in a lot of cheap toys available at £ shops. Last year I got 15 four...
OK. I will try that. In the meantime, I have removed the two 2200uf caps, the resistor (zero ohm, baby!) and replaced the 3904 with a 2n2222. Also, I think I...
... Matt go to my site and click on the saucerbot link and check out my video of some symets the one going crazy is a garden lite solar cell and the one you...
... That is what I am looking for! The three in the bottom seem to be what I am getting out of my symet. Not much. I have not been able to test outside. I work...
... Grooking around your site, I think I was expecting more of the popper action out of this symet. I see why the Junkbots book calls symets "plants"...they...
... Do you think I would get better action by replacing the 1000uf caps with 2200uf caps? I have put the 2.2 resistor back in and the FLED does not flash...
... well more is better :) with more capacitance it will take longer to charge but you should get a longer run time. I'm no electronics whiz but the uF has...
... look at dogbot on my solaroller page and that is just a symet with two motors instead of one . reverse the connections on the second motor or it will just...
And Eric gets the prize. My hat's off to you. From what Matt is showing, I think you are spot on. ... Connect the capacitor anode (positive) to cathode...
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