I have 2 identical scanners that have 2 different power cords. One of them is 3A/125V and the other is 7A/125V. My question is, does the difference in amps matter that much. Could someone explain this to me in detail?
I will probably end up doing both and see what the output is. I specifically want a circuit that will detect the signal and light an led when the car is within range of the rf signal controller.
Could anyone supply me with a schematic that would work the best for the 30-40Mhz incoming signal? I'm basically wanting to detect the rf signal and light an LED when it detects it.
I'm not too sure about that. I'm just looking for some general sensors for it. It is supposed to detect an rf signal from the remote control for the radio controlled vehicle.
I'm looking to make/buy an RF(radio frequency) to detect and display the level of an incoming RF signal. This is going to be used on a radio controlled vehicle. Any suggestions and info would be greatly appreciated.
I got a question on finding the range using the oscope; tell me if this is the wrong approach in calculating the distance.
I measure how long the lag time is between the transmitter pulse and the echo. I multiply that by the period(50us). Then I multiply that by the speed of sound, which is...
Edit: Ok the sine wave that I had was screwed up because of the 2nd line in the oscope. I plugged it into another and its working ok now. Here is a picture of what my oscope is showing now with my crappy camera phone.
http://img184.imageshack.us/img184/6643/picture0132kd.jpg
The top square...
I hooked up the finalized circuit to the o-scope and I'm getting a good square wave from the transmitter circuit. Unfortunetly, my receiver circuit is still having problems. According to this site where I got the circuit from; http://www.leang.com/robotics/info/articles/minison/minison.html
It...
A couple days ago, I hooked up the stepper motor windings to a dip switch. After messing with it, I got it to turn clockwise by shifting to the left.
0001
0010
0100
1000...
...and counter-clockwise by shifting to the right.
1000
0100
0010
0001
Couldn't I make a program that would...
I will most likely use the circuit that has a max range of 5-6 feet basically because I already ordered the parts for it. I will be building it tommorow so I will test it out to see how far I can get it to go. On a side note, I got my stepper motor working from the 2 chips that I was given. The...
Alright cool, sounds good. I tested out the motor and got it working right with just a dip switch. I will need to program a chip to count the way i need it to, too. My question is, do i even need the l297 and l298 in the circuit? Couldn't I just simulate the dip switch counting with the...