PicOscDisplay_cc.jpg

Ficara’s oscilloscope scrolling text display project uses just one PIC chip & no other components (well, battery/power supply of course :) –

Scrolling text on oscilloscope, built with only one component: the Microchip PIC16F628A. The characters to be displayed are stored in EEPROM (ascii codes from 0x20 to 0x5f so numbers, capital letters and special characters).
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The oscilloscope will be set for 2mS/div on X axis and 1V/div on Y axis. One full screen contains 10 characters.

More info + source available here. [via Hacked Gadgets]