USB Power (was Odd Floppy Drives)
cclist at sydex.com
Mon Sep 26 22:14:56 CDT 2005
On 9/26/2005 at 6:48 PM Fred Cisin wrote:
>I've seen an LED map light that plugs into and gets its power
>from USB. It seemed to work OK.
USB is downright handy for stealing power--and easier than stealing it from the keyboard port. I run a script on the server here that has the audio card hooked to a cheap FM transmitter. The transmitter took 3 AA cells, but grabbing +5 from a spare USB port works just fine. 106.7 on any radio in the house gets BBC World Service in the morning, BBC Radio 3 in the afternoon and BBC 7 in the evening. Much better than the commercial-laden garbage that passes for commercial radio here. Broadband has to be good for something, even when you're not sitting in front of the screen.
I discovered a carton of Toshiba InTouch modules in the garage--these are USB devices that are basically an LCD display with a bunch of buttons, a volume control and an IR sensor on two boards in a plastic case that was supposed to fit under the monitor of the Infinia. I don't have Windows drivers for the things, so they're pretty useless as-is, but they've got a nice Toshiba 5343DGYTN LCD display board in them. I have the pinout of the display board and how to drive it from a PC parallel port (the controller is an OKI M5260). The USB part of the board is all SMT with an Intel USB controller (basically an 8051 with USB support on it); code seems to be in a 27C256 OTP PROM...shrug. All in original shrink-wrap boxes. If anyone wants one, I'll let them go for my cost--$5 each + whatever it costs to mail. The flotsam keeps washing up on the beach and I'm just trying to keep it out of the landfill or from poisoning some Chinese peasant.
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