An Instructables published a week or so ago: If you have ever wanted to control electronic devices from your computer to control or regulate your environment, this instructable will guide you. In this example of computer control, a USB relay device (USBmicro http://www.usbmicro.com – U451) will control two 60 watt light bulbs from a PC [...]
Part 1 Part 2 Part 3 Part 4 The Mail Light hardware could easily be modified to turn on some rotary warning lights, such as these lights from Woot.com. The example pictures below show the modification of a set of these lights to be driven by a U401 which works just as well as the [...]
Part 1 Part 2 Part 3 Part 4 The idea behind the Mail Light project is to indicate the presence of emails that are currently on my email server with a flashing LED. I am often not right at my desk and I would like to know if I have email. Or I am near [...]
The U401 and U421 USB Interface from USBmicro are an easy way to interface a number of real-world devices to the PC (or Mac/Linux). In many cases control of something as simple and straight forward as a relay from a PC would require more than just a minimum amount of effort. The U401 (U421) make [...]
