I am looking for some guidance on my first ever Arduino project. What I am looking to do is wirelessly connect two modules at most 60 feet away from each other. One will have two buttons (or a analog joystick) which will send commands to tell another module to either increase or decrease the position of a servo. I am sure you pros on the forum are laughing at the simplicity.
So since I am new to this Arduino scene I have nothing for tools or equipment. So I am looking for guidance on what hardware would best suit my needs. Size and simplicity are the two major concerns. Size because I will need to encase both modules in some sort of portable/hand held enclosure(s) and simplicity for the obvious reason this will be my first project.
I am contemplating these material choices:
- Duemilanove starter kit LINK
- Two (2) Arduino Fio boards LINK
- One FTDI cable to connect to Fio boards (See question 1)
- Two Xbee 1mW modules LINK
- Xbee Explorer USB (See question 1) LINK
- Tilt apparatus LINK
- Standard size Servo (See question 3)
- Power Supplies (See question 4)
1)When connecting an Xbee module attached to an Arduino Fio through a FTDI cable can you configure the Xbee or do you need to detach the Xbee, install into a Xbee Explorer, and configure separately apart from the Arduino board?
2)IS Xbee the cheapest and easiest route? I pondered with RF communication? I am pondering if that will add another (more difficult) layer difficulty.
3)What is a well known model for a standard size servo people use?
4)Since both modules need to be portable what are some suggestions for power supplies? Remember one side of this equation needs to not only power the Arduino but a servo as well.
5)On the moving side of the tilt piece I need to attach a laser pointer. I can either get a laser module and have the Arduino drive it and power it or I can just get a small laser pointer that is run off of internal batteries and attach it to the tilt and manually turn it on and off when I need to use it.
The overall thing I am trying to achieve is the ability to line up points on a straight line over a variety of lengths (hence the tilt servo setup).
I look forward to documenting the build on this forum. If you have any suggestions hardware or code I would appreciate it.EDIT 08-JUN-2010: In an effort to further explain why I don't just buy a RC setup, I made a couple basic drawing(s) of what I hope to accomplish.
I need to measure to points across something with obstructions. Eventually I would like this thing to tell me what that distance is.
How I planned on doing it:
So I plan on attaching a tilt axis on something (in black) that spans farther out than the obstructions (in red). Shoots a laser (green) perpendicular to the object I am trying to measure (point A) then I rotate servo to another place (point B). I would then remove the thing I create (in black), put on level ground, and measure the distance from point B to my starting point A.