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    How does a 2-channel radio work?

    I understand that much, I was mostly wondering how both channels are incorporated into one signal. Thanks for the reply though.
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    How does a 2-channel radio work?

    Can someone please explain how a 2-channel radio works (like on an RC car)? What I need to know is what the signal looks like. I know it differes with different radios, but how does the electronic board on the car tell the difference between the steering command and the throttle command? Thanks.
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    Local Positioning System (I need some help)

    That's basically how GPS works, right? (except that its not ultrasonic) The only problem is that I could only track one car at a time. I would really like to make it like GPS, where the signals are sent to the cars, not from them. If its not possible to do it that way, then I guess I'll have to...
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    Local Positioning System (I need some help)

    I'm not sure what you meant, but it seems like you are saying it would be very hard. Can you explain a little more what you mean? Anyway, thanks for the suggestion, but I really wanted to make it so each car had receivers and calculated its own position. Like I said earlier, then I can track...
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    Local Positioning System (I need some help)

    Long story short, I've been wanting to make a system to locate a 1/28 radio controlled car on my driveway and show its position on a chart/graph in a computer program. Its not really that complicated, but I need some help with the calculations, logic, etc. At first, I decided I would put IR...
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    help me create a racing timer

    I've been wanting to do the exact same thing. I made a simple timer using lasers that shone across the track into sensors and triggered the timers when the car blocked the laser, but it doesn't work very well because its hard to get the lasers to shine right into the sensors. I am interested in...
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    NiMH Battery Pack Charger

    If anyone can help me out with the charger design (circuit), I would appreciate it.  ;) Sorry about the double post, but I would really like to complete this project and needed to get it back on the first page where people will see it.
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    NiMH Battery Pack Charger

    Thanks again for your help. Sorry to keep asking questions about something so simple, but what value do think I should use? 1K maybe? Or is that too low? So maybe I could check and see if the battery is almost fully charged, and if it is more than, say, 90% it will just use a trickle charge, or...
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    NiMH Battery Pack Charger

    Thanks. I'll take a look at some of those datasheets. It may seem like a stupid question, but how would I put a load on a battery? Would I use a resistor? Also, how long would it take before I could be sure there is a short? If the voltage doesn't increase at all, would I be able to tell right...
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    NiMH Battery Pack Charger

    Do you think you could give me a link to one of those datasheets? Thanks. So if at the beginning of the charge the voltage is already 1.2 volts, it should cancel the charging? Also, how would I detect a shorted cell by measuring the voltage? One more question. Let's say you have a battery that...
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    NiMH Battery Pack Charger

    Well, I'll figure it out when I get it. Back to the charger's design. I decided I would still rather use peak detecting (lol, I keep changing my mind). Here is my plan for the charger and the program I will write for the microcontroller that monitors the battery: First, the charger will begin...
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    Where to find XTAL stuff?

    Where can I find pins to solder onto a PCB board for XTAL (servo) connectors, and where can I fund plugs and wire for servos? Thanks.  :)
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    NiMH Battery Pack Charger

    I looked all over their website but they don't seem to have any info on the battery. Energizer does have a good site.
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    NiMH Battery Pack Charger

    Oops, I forgot about this post! Anyway, I guess I'll use temperature sensing because that seems to be the most reliable way. I still would prefer peak detecting, but if it won't work for what I need then I guess I won't use it. I am probably going to buy a Mini LST sometime soon, so I want to...
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    NiMH Battery Pack Charger

    Thanks! That should help me a lot! If I were to charge a 7.2V pack, what voltage would I supply the circuit with? My main goal was to use a microcontroller to contol the voltage and current, so how do you think I could modify your circuit to eliminate everything not needed if I use a...
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    NiMH Battery Pack Charger

    Thank you so much! I read through the part on charging the batteries and its starting to make more sense. One thing they didn't make completely clear is whether or not you can determine overcharge by the voltage output. I would like to use this method if it will work, so can you give me some...
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    NiMH Battery Pack Charger

    Thanks for the info. One thing I don't understand, though. What does 1C mean? As for the 3-stage charging routine, how does it work? Also, where can I get some info on what temperature to stop the charging at, etc.? Thanks.
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    NiMH Battery Pack Charger

    Actually, I don't have a specific pack I want to charge. I want the charger to be compatible with different batteries. It may sound like a dumb question, but how would you figure out the max. allowed charge current for a battery? As for the way of cutting off charging, I want to use peak...
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    NiMH Battery Pack Charger

    One of my hobbies is driving/modifying electric radio-controlled cars and trucks. One of the biggest problems, though, is that any good NiMH chargers are 50-100 bucks. So I had the idea to design my own charger. I have not started yet, because I need some help. First of all, what is the concept...
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    Flashing lights..

    Can you give us some more info? How many LEDs do you want to flash? What do you mean, you want to use analog? Like no microchips? Here is a link to a fairly simple circuit using a 555 timer and a 4017 counter chip: http://www.charlton.vic.edu.au/mark/electronics/555_projects/k-rider.html I'm...
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