The LCD-Demo-LPC2158 is a reference design for a low cost microcontroller and LCD solution using the NXP LPC2158 along with a few discrete external components. The Board is controlled by a simple two-button user interface (MODE and SELECT). Example source code may be downloaded for several sample applications: an FM Radio display during a simulated channel scan, a 15 minute countdown timer, a repeating pattern of 4 text lines, and virtual COM port allowing users to display their own messages on the LCD. The user can edit this code and download to the reprogrammable Flash microcontroller directly through a USB virtual COM port on the user’s PC (no external programmer required). The LCD-Demo-LPC2158 can function as a Single Board Computer since the powerful LPC2158 contains an ARM7TDMI-S microcontroller with 512 kB of programmable Flash memory and 40 kB of RAM. Additionally, the 20-pin expansion header allows for the connection of external devices to the microcontroller directly through GPIO or through the SPI and I²C interfaces.