I'm wondering how to hook up common analog sensors to my Mac. I've done some searching for USB A/D converter boxes, and found them for $150 (or $85 at Phidgets but you have to use their special cables). This seems steep when I can by a USB game pad or joystick for $50 that sends multiple analog signals in just fine.
In fact, I'm half-tempted to hack a game input device, but I'm not really a hardware whiz -- is that likely to be harder than it sounds? Has anyone already done this, by any chance, and posted their findings somewhere?
Another alternative I'm considering is to buy a Baby Orangutan ($25) and program it to report values from its analog inputs over the serial bus upon request.
Any other suggestions for getting analog signals into my Mac cheaply would be much appreciated.
Thanks,
- Joe
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