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Building a Heat TableNeed a flat surface at 200°F on the cheap? Check this out... |
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Using an LCD with a MicrocontrollerAdding a display to a microntroller can make all the difference in the finished product. |
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Controlling Power EquipmentUse TTL to control space heaters and microwaves. |
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Using the PIC 18F2455 as the UBW (USB Bit Wacker)A remarkable way of interfacing to to the real world over USB. |
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Using the AT91SAM7S256 Header BoardWe have been experimenting with the SAM7 header board. We like this board, but it seems a bit touchy with the IAR compiler. We also take a look at using JTAG debugging with such units. |
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Spectral (FFT analysis application)Spectral started life as an idea to detect bad vacuum pumps by listening to them. There are stories that this is how the good pump repair guys do it, they put the handle-end of a screwdriver up to their ear, the other end on the base of a pump and listen. Allegedly, a good repair man can hear the noises bad pumps make. So this was merely an effort to make this automatic. |
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USB ThermometerEasy access to temperature data with your computer is easy... if you spend big money. There are a many expensive products to keep an eye on the temperature of your machine room. The real trick is to do it on the cheap |
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WiFi SpinWhat do you get when you put a planar directional Wifi antenna under computer control? With a bit of programming, one can get some pretty good graphs of what direction those WiFi APs are in. |
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Radio TivoUse Linux to record your favorite radio shows to mp3, even while you are asleep. |
Linux KioskHow to get Linux to boot to something, and only that something. |
Designer FirewallsIptables in Linux (Netfilter) firewalling can be quite sophisticated. Here are some ideas. |
Designer Print ServersTired of the piece of junk hardware "print servers"? Try using CUPS on an old boat anchor. You'll be pleasantly surprised. |