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USB LED Load
Posted on Tuesday, April 20, 2010   •   Category: USB Circuts

USB LED Load

The board supports driving two separate tri-color LEDs. More can be setup inline if desired. Currently the software only uses the second LED and its color represents the CPU load of the system in real-time. Blue for idle and gradients light blue, green, yellow, orange, and finally red indicating heavy CPU utilization. If the system fails to respond, the LED begins flashing RED to indicate a lack of communication from the software. This lets you easily identify a crashed machine in a rack for example.

     USB - LCD with PIC Microcontroller & FT232
     USB to RS232 Dongle
     USB 8bit Interface Board
     USB Battery Pack
     USB - Relay Board
     USB LED Load
     RS232 Serial to USB Converter
     USB Device Charger
     USB-PC 8-CH Power Switch
     DIY USB to RS232 Adapter
USB LED Load

 

Build Accurate LC Meter and start making your own coils and inductors. This LC Meter allows to measure incredibly small inductances making it perfect tool for making all types of RF coils. LC Meter can measure inductances starting from 10nH - 1000nH, 1uH - 1000uH, 1mH - 100mH and capacitances from 0.1pF up to 900nF. The circuit includes an auto ranging and reset function to make sure the readings are as accurate as possible ... [more]



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