Thank you. I realized there was some reason why these weren't being used for "real" projects, but with my limited knowledge it wasnt clear to me. Right now I am trying to interface a 49 mhz with the arduino, while also reading several arduino books and "An Embedded Software Primer" by David Simon. Its an older textbook I got for very cheap off amazon.
My MAIN objective in this project is to simply write a few working sketches to better familiarize myself with the Arduino code. My coding experience is entirely in BASIC and MATLAB so the C derivatives are taking some getting used to. Most of the arduino project books I have purchased seem to deal almost exclusively with LEDs, and there are so many different ways you can make an LED blink before it becomes beyond boring ;)
A few more questions. Again, If these questions make you go "huh?" Its because I don't fully conceptually grasp all the things I am working with, and am trying to fill in the holes. Reading books is great, but I tend to learn best through hands on trial and error and asking questions of those whose knowledge is much greater than mine. (While hoping they understand that I am a quick study who is not simply wasting their time and refusing to research myself. I simply don't even know where to begin for much of this. If its something you've seen discussed before, a simple link or forum name is more than adequate. I'm not trying to burden anyone, and you will find me to be extremely appreciative of any insight offered.
I am an ASE Technician (cars) and I specialize in retrofitting older cars with newer EFI systems as well as custom work such as welding. So I have some background in electronics, and understand the "whole" picture better than the individual parts. I will also be using a lot of car analogies, because it makes it far easier for me to understand.
Now those questions ;D
Digital and Analog. There is still some gray area here for me. Is digital always going to be either HIGH/LOW on/off while Analog is going to have a varying value? When I socket and chip an Eprom on a Honda ECU, I understand that those pins are digital I/Os, much like arduino, but I don't really understand why.
For example, a camshaft position sensor or a crankshaft position sensor is a hall effect sensor that will pulse 5v, so that makes it digital, is that correct?
On the other hand, a typical MAP (manifold absolute pressure) or TPS (throttle position sensor) is going to have a 5v reference voltage but is going to output between 1 and 3v or 1 and 5v depending on manufacturer, so because the signal is changing its analog?
I realize that seems extremely basic, but it is rather vital that I have a solid grasp of the concepts, and currently Im still :o
Second, Is the Vin pin on the POWER part of the arduino always going to give me 5v, or is it currently giving me 5v because I am running it from a USB port, but would give me 9v if I ran it from a 9v adapter?
I realize I am all over the place as far as topic here, but Im trying to just keep everything all together, as to not clutter the front page. I don't really know what the preferences are here, and if starting a new thread is better, let me know.
Here are the basics of my first project.
I have a 49mhz RC car that is complete. As stated I am a "learn by hands on and mistakes" type, so I removed the motors, desoldered the power/ground, and ran them to my arduino uno using first the 5v power and then the 3.3v power and charting the resulting voltages. I measured at both the IC pins, and the Motor signals after they have run through some transistors ( I havent really figured this part out exactly, it uses through hole on one side and SMD on the other and im having a heck of a time tracing it)
I was able to trace which button on the transmitter corresponds with which IC pin and which of the 4 motor leads.
My goal is to connect this to the arduino, and have it display( through the serial port) digital ON/OFF at particular digital pins based on which button is pressed.
Now, I want to first attempt to write this sketch myself, but is it possible to do this using either the IC pins OR the motors signals after they have run through the transistors? Im not asking which way it SHOULD be done, I want to know if its possible to do it both ways, because if so I will try to write both.
Is it possible to write a sketch using either method with just the basic commands I have learned from my Getting Started With Arduino book, and/or are there specific commands that I should really pay particular attention to and investigate?
Again, Thanks for reading one of my novels, and any help you can give me! [smiley=thumbsup.gif]