Recent content by VarietyBook

Thank you, everybody. After reading your posts, we have decided to go with something that comes all-in-one, in this case Texas Instruments's Launchpad boards that come with everything. Once again, thank you all for pointing us in the right direction.

I am working on, with some friends, a small project. It is to take a toy radio-controlled car and put a rotating electronic rangefinder on it in order to have it drive itself around SIMPLE obstacles. We all have a slight background in electronics (not much) and lots of experience in computer...

Thanks so much Bobby for the great resources. I had suspected something odd would happen with square signals, but I didn't deeply think about it. I guess my circuit will have to be a lot more complex!

I am a beginner at electronics, and wanted to make a simple (non-audio) radio transmitter and reciever, with no inductor-capacitor resonator, since I don't understand it and I am not making an audio radio. Here is my transmitter, with the input wire to the BJT being the signal: Here is my...

I am not experienced in electronics, correct. I am, however, an experienced C programmer, and that is where my interest in electronics came from (although not entirely). I do not want to use a Raspberry Pi for two reasons: 1. It is more like a PC than a microcontroller 2. It gobbles up lots of...

I am building a remote control airplane, and naturally the most complex aspect of it is the electronics. I don't know if I should use the Arduino microcontroller or try to build my own circuits that only do one simple thing (I am using commercial electronic speed controls either way for the...

I understand the basic gist of the whole DC brushless motor, but I don't understand why there needs to be a sensor. Why can't the controller just alternate between phases at a constant rate? What I mean is that if there are a fixed number of ways the coils can be charged, why not just alternate...

I guess I will start with what you recommend. Thank you for your advice. I will start with the RepRap.

I would like to design a 3D printer. I know that sounds very ambitious (and probably stupidly unrealistic), but I'm not talking about the fanciest things on the market (like glass/metal printers). I just want to design a printer that can print to a great resolution and in mixtures of 3 primary...