Thank you for looking at this! You're totally right, it isn't the most elegant solution for what I'm doing. I really need all 9v to be handy, it's to be used...
With some small mods the circuit should work fine for your application. I posted the schematic in the file section. By adding Q2 to drive Q1 a quasi darlington...
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the beam group. File : /555 LED fader.gif...
beam@yahoogroups.com
Mar 1, 2009 9:26 pm
59081
what if I substitute the 2 1uF caps with something else? Do those control the pumming interval? Smaller caps=faster cycles between pumms?...
Wow, thank you, Wilf!! That's way above and beyond.. I think I will have to make another one! The first one I made is 4 groups of 3, with the extra hanging out...
Hi Chris, My pleasure. Sounds like you already build one version. How did you wire the 4 groups of 3 plus 1 LEDs? How many resistors did you use? wilf ... ...
Hello Wilf, Yes, I've already made and given one. I just didn't have time to work out the pulsing part of it, and had to place a mouser.com order, which...
I mentioned matching LEDs but it sounds like you may be using a variety of LEDs in different groups. For better control of each LED brightness use individual...
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the beam group. File : /555 LED...
beam@yahoogroups.com
Mar 2, 2009 6:54 am
59090
<Re-post, my links didn't work> I just uploaded my attempt at making a wire schematic out of wilf's Solar Revolver V4. The logic and wire schematics are in...
- ... Components are definitely welcome. I've been having a field day putting LEDs to good use, for example. Not only are they fun in and of themselves (taped...
I ended up not being on call this weekend so I had no time to weigh and sort boards. I di however clean the pile and sort what I wanted to keep stashed and...
2 ideas I have had for awhile but never acted upon. A robot that actually feeds has been a constant in my mind since 1. A true feeding mousebot: (Has this been...
I have 10 74HC240 chips. I have made a few bicore heads, but have never made a walker. Since I just got 2 servo motors from solarbotics...Is there any way to...
This will answer #1 http://haroldsbeambugs.solarbotics.net/rovore.htm his site has a bunch of good info and bots. krumpe ... couch ... touch ... crabtrap ... ...
Yes, it's red and blue 10mm LED's. I'll keep this in mind for the future project! Thank you for the custom schematic.. that's super handy! I'm going to have to...
Hey wilf, Just wondering if you ever got around to doing a layout diagram for this circuit. I've tried again to make one but I know it's horribly wrong....I...
Hi. I'm having truble with the wind powered robot. so I took a brake and built this little guy. it uses the 'Dozer' circuit. I pulled the mototrs from Colgate...
... Thanks. I've never been able to get the "Herbie" circuit to work for me. If you are using a 1381 S.E. I think that might work. But I'm not sure. GOOD Luck ...
... thanks I'm new to this sort of thing so I figured it wouldn't work and my solar engine has been acting up this dozer circuit is intriguing can you show me...
Looks good based on a quick once over. I have to cram for a meeting tomorrow but I will make some detailed comments tomorrow night including the order in which...
Thank you wilf, I've been wanting to build this bot for a while and now everything is coming together :) A build/testing order would be greatly appreciated! I...
I think you could use an H-bridge to drive the motors, I' not an expert in any way but if you're concerned about the low output voltage of these chips maybe...
Check the costa rica beam's walker circuits. There's a "240 MicroCore Walker" wich uses only ONE 74HC240 (interesting) also take a look at the "PhotoWalker"...
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