EPE Online Adding Large Digits to your Ginormous Stopwatch Construction Project

	Adding Large Digits to your Ginormous Stopwatch Approx construction cost US$56 (Per Digit)

	This Large Digit Display unit was originally designed for use with the Ginormous Stopwatch module presented in Part 1 last month. It has 178mm (7-inch) characters and can use high brightness LEDs for dazzling daylight performance. It can also be driven from a standard computer serial port with the optional adapter, allowing it to be used as a scoreboard, bingo number display, clock, etc. The heart of the circuit is a PIC16C54 microcontroller, which receives and processes serial data from the Stopwatch module or computer serial port. The data reaches the micro via an opto-isolator, as discussed in Part 1, and the individual digit modules can be daisy chained together up to a maximum of 16 modules. More details on this construction project can be found in the December 1999 issue of EPE Online, the world's first web-delivered electronics and computing hobbyist magazine. PURCHASE this issue or peruse more Projects
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