Remote Control Server RCS

Posted on Feb 5, 2014

One of my friends asked me if I could design a circuit for him to be able to remotely power up a server. He has 2 servers and he didn`t want to keep them both on whilst he travelled. He wanted to be able to turn on a server when he needed it. He has one server which is on all the time (web server) to which he RDPs occasionally. The project involve

Remote Control Server RCS
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d a microcontroller circuit with RS232 interface and a simple application to send messages to it in real time. Since the MCU has multiple I/O pins it would be a waste to control only one server, so I have designed this project to control up to 5 servers/devices. I have thought about getting power from PCI socket but opted against it as the motherboard slots change very often. This way you can use this card in any PC or Server. I have chosen to use PIC16F628 for the project as it is the first one to introduce an internal oscillator. This saves cost as there is no need for crystal or caps. The Remote Control Server application is written in VB6. It sends real time button state messages to the MCU over a standard RS232 serial port (USB to RS232 cable can also be used if your laptop or PC has no serial ports). By default the application will open up in Mini mode (second picture above). All the settings are saved in the registry so you don`t need to configure the settings every time you run it up. The names for the buttons are configurable in the Configuration window. By clicking the labels "Momentary" or "Latched" will toggle between the two modes of operation. By pressing "Cancel" button on configuration screen will apply the changes but will not save them in registry so next time you start the application it will revert to last saved settings. Application is designed to reflect the current state of the button. In "Momentary"...

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