Search results

  1. C

    Anyone know of a nice USB wireless mini camera...

    I'm looking for a little wireless camera. Here's what I need it to have/do: -Color -Digital -2.4 or 5.8 Ghz (not completely necessary, but it would be nice) -USB receiver (sends video to computer via USB port) -Powered by 5V (9V would be fine also, but I would prefer 5V) -Fairly decent quality...
  2. C

    Question about triggering transistors

    I have never been able to get a clear answer on this. Can I use a separate power source to trigger a transistor. By this I mean a positive voltage from a source other than the circuit the transistor is in. The ONLY connection from the separate power source to the circuit with the transistor...
  3. C

    What RF trancievers will work...?

    What I need for my project is some simple RF transcievers. Here is a list of the things they need to have/do: -Crystal socket for XTAL crystals in the 27 mhz range -4 simple pins/connections: positive, negative, data to send, data received -Place to solder antenna to (obviously) -Small (2x2...
  4. C

    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.
  5. C

    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...
  6. C

    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.  :)
  7. C

    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...
  8. C

    Introduction

    Hello everyone! I thought I'd introduce my self here, as I just joined today.  :) I have a decent amount of experience in electronics, and I have had a strong interest in microcontrollers lately. I enjoy building electronic projects for a hobby, just like many people here. Hopefully I can...
Top