CodeMercs Forum

My iTunes project works pretty well now, and I am thinking about improving it. The code is a mess, I figure I will need to clean it up if I am going to keep talking about it, but I am also thinking about some added functionality: I'd like to add a few buttons to make the unit into a (more) full ...

After much painstaking solder-joint checking, I figured out the prolem: it was the 10K pot. Either it's defective or it's the wrong impedance for my particular flavor of display. Pulling pin 3 of the display module to GND (by shorting the two pins of the pot) gives acceptable contrast, I will tweak ...

OK, re-reading the data sheet has answered the jumper question.

I've left for work, but did not see any squares at all, so maybe I need to back up a little: using the schematic on page 26 of the IOWarrior data sheet, I am connecting the pin 2 and pin 15 of the LCD to Vcc on the IOWarrior board ...

The LCD module I bought for my project requires an inverter. I am pretty comfortable building one of these from some parts I got at the surplus store:

http://www.allelectronics.com/cgi-bin/item/INV-505/search/DC__AC_INVERTER_FOR_MINI-FLUORESCENT_LAMPS_.html

It will take some time to find the ...

That makes perfect sense, and I am glad I asked. Too much education and not enough experience had me confused about the actual voltage of high and low pins.

I would have certainly designed something stupid if I hadn't questioned the issue.

This week I am building the LCD interface, hi ho.

If anyone cares, here is a pretty good script to test out your IOWarrior construction (if you use a Mac, anyway)

Can anyone tell me why I need to write data backwards from 255 to make the LEDs count forward in binary? If I send the value of xCount, the LEDs light up as follows:

255-> 0 0 0 0 0 0 0 ...

In the grand tradition of newbie users answering their own questions, I am beginning to figure it out!

I wrote this applescript, and from the result I surmise that the IOWarrior is properly assembled:

tell application "IOWarriorAppleScriptGateway"
--display dialog (IsIOWarriorPresent)
set xCount ...

I forgot to add that I am using a Mac with OS X 10.4.8 and the latest SDK download.

watts

OK, I got my kit, and I assembled it with no trouble. But this is just step one, I have a few more hurdles. I have no experience with microcontrollers, and though I think I am pretty clever, I am still on unfamiliar territory when dealing with hex and binary data, shift registers, etc.

Anyway, the ...

I haven't even started the first project yet (the starter kit arrived today, woo hoo!) but I am already thinking about the next one.

I gather that I can only use 1 iowarrior on each port. if my Mac Mini has 4 ports, I can theoretically control 4 iowarriors, right?

Is there a problem with having ...

OK, so clearly it's unsuppported! As a test of the wireless version of the project entails first building the wired version, I'll try that first, and when I test the bridging I'll let everyone know.

Like many (it seems) here, I am about to build the project seen here: http://monitzer.com/iowarrior/ and I have ordered an IO Warrior to do it.

I don't like the idea of having a USB cable across my living room though, so I am thinking about a wireless version. A google for "wireless usb" provides a ...