Hacked Gadgets Forum

November 6, 2008

Headless Computer Display – using PIC18F4550

at 5:52 am. Filed under Electronic Hacks


Without a monitor and keyboard it can be hard to see what is going on with a computer system. You can remote in from another computer on the network. This small device allows you to monitor and control you system without booting up any other computers. 🙂

"I have a Mini-ITX server that runs my website, runs my weather station, and acts as a home file server. This server doesn’t have a monitor or keyboard connected to it as I use Windows Remote Desktop for most things. Sometimes, it’s nice to be able to take a quick peak at the server or monitor network settings without using another computer. So I decided to make a basic auxiliary display with a keypad. Many people have created auxiliary displays for computers some of which are commercially available. Most are serial port based, and many of the ones that are USB based use a USB to serial converter and expose the display to Windows through a virtual COM port. The display I created uses the PIC18F4550 with WinUSB and doesn’t expose a virtual COM port. The display itself is a 128×64 parallel graphical display model GDM12864H from SparkFun. The display includes a keypad and a bright backlight. It is capable of displaying text in either horizontal or vertical mode or running in a pure graphical mode."