I was wondering if someone new of a link to a schematic for a head bot type design that follows an IR source. I would like to use a circuit like this for a...
Hi all, I'm new to all of this, and have breadboaded together an FLED solar engine for a symet based on the Junkbots book. And of course, if it was working, I...
... questions. ... panel ... 1.285V ... If ... see ... and ... would ... from ... that ... to ... Have you tried adjusting the resistor values? in the...
Hi Wendall, You don't have a high enough supply voltage. You'll need around 3 volts for the circuit to fire. This includes the turn-on voltage of the FLED and...
Hi Joshua, Any head design that uses IR diodes as the sensors is reacting to IR in the environment. If you want your design to follow a particular source, you...
Thanks this is great! im just touching up my infrared reflection circuit now and then ill start testing the 5 sec delay. I dont have time to post pics tonight...
No worries, Caleb. Please remember to attach the 100k (or whatever it is you need for a 5 sec delay) to the 9V that remains 9V. This keeps the input current...
Thank you for your help Joseph. The sources I'm trying to follow are modulated--one at 2.5kHz, and another at 4kHz, both (+/-)5% square waves. I'm hoping to...
Hi Jim, Have you tried EXPRESS PCB? It has a schematic editor that will let you export to a bit-map image file, just like an MS paint file. It has lots of...
Hi all, thanks for your help. I hooked up a 10K pot in place of the 2.2K resistor and after a little tweaking got the motor to start spinning while pushing 3V...
Sorry, Joshua, I don't know of any ready-made solutions. If I follow you correctly, you will have two sets of band-pass filters in your head, one tuned to each...
Hi all, I'm looking into solar cells to power this symet. The standard Radio Shack silicon solar panel produces "0.4 amps at 0.55VDC in full sunlight"...
Good afternoon, Another source would be my store located at www.roboticsinmotion.com. Check it out. Regards, Kevin Wells, Owner www.roboticsinmotion.com ... ...
Hi Wendall, You are pretty much on track with your understanding of amps and capacitors. The Radio Shack solar panels are not really suitable because, as you ...
Hello groups, Can anyone help me with the schematic of the solarphototrope found in: www.solarbotics.net/library/circuits/bot_walker_solarphototrope.html Im...
Hi. I'm working on a micro sumo, and have everything except the 5 second delay. I would like it to have a LED blink 5 times (once per second) like a count...
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 : /sensor.bmp ...
beam@yahoogroups.com
Nov 6, 2007 4:38 pm
56944
I'm trying to design a robot that will follow an individual person around. I had thought of using the infrared led's and sensors from old remotes. Using 3 ...
Sticky Tape Inspired by Insect Feet http://www.physorg.com/news113486136.html Scientists have designed an extremely sticky patterned adhesive, which is twice...
Hello Jab! Yeah, those (10k and 10uF) were just the timing values for the reverse sensor of both the IR module and the manual tactile switch (whisker sensor)....
Hi Jing, This circuit is a standard microcore, with auto PNC and a novel LDR sensor bridge courtesy of Wilf, presumably based on a 74HC14. You can find a...
I don't think you need the middle sensor. Two sensors would be able to track the source. Wilf's 40kHz Herbie circuit may be of interest to you. I'll refer you...
A variation of the counter section of the BEAMSonic circuit might do the trick. Do you have this circuit, Jab? In the meantime, you might be interested in this...
Another idea might be to employ a CD4017 counter IC, (or a CD4022), and have your 1 second time base drive its clock input. The fifth output of the IC will go...
auwsume Jo, thanks. Nope I can't find the BEAMsonic in my folders. Space is limited on this bot. I'm scraping the edge of the 5cm limit as it is. I don't have...
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