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PIC16F877 APRS Weather Station
Posted on Wednesday, April 21, 2010   •   Category: PIC


Weather Station is PIC16F877A based and has a 4x20 LCD, a data logger output and accepts 1Wire wind instrument. It has a built-in APRS TNC. Connect it to your portable rig thru a DIN5 connector and you have a true portable weather station.


Digital Video Selector 1.0
Posted on Wednesday, April 21, 2010   •   Category: Video




PIC12F675 - Flashing LED
Posted on Wednesday, April 21, 2010   •   Category: PIC


Simple little circuit for testing PIC12F675 microcontroller. When you start learning a programming language like C++, Visual Basic or any other language your first step is to write a program that displays "Hello World" on a computer's monitor. When you start learning how to program PIC microcontrollers an equivalent to that is blinking a LED.


USB-PC 8-CH Power Switch
Posted on Wednesday, April 21, 2010   •   Category: USB Circuts


PowerSwitch provides 8 bits of parallel output intended to switch e.g. the power supply to electronic devices. The PowerSwitch firmware is accompanied by a command line tool for Unix to control the device. (The command line tool can also be compiled on Windows using minGW and libusb-win32.)


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


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.


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