/stephens_cave/hex_counter.html
VIM 8.2

/* Back to Projects */

/* Back to Home */

/* Motivation Clock

> This project is a counting hex display clock.

> I built this as a motivational tool to help me visualise the time left in each semester.

//

> At the start of each semester on the first day of school I set in the number of seconds till my last final. Spring 2026 is 10,504,800s (122 days) or 0xA0D700s

> A 555 one second timer counts down on the display indefinetly, this gives a nice phyiscal reminder to not waste time since itll never stop

*/

Motivation Clock Counter1 Motivation Clock counter2

/* What I learned

> This was supposed to count in decimal, I ordered and built this with hex chips accidenatlly.

> The count input is very sensitive to static voltage changes.

> Using a potentiometer to adjust display brightness causes the dim level to change based upon how many LED segments are illuminated.

> 7 Segment displays do a very bad job at showing A, B, C, D, E, F, instead the manufacturer uses different unique patterns so I had to include a cheatsheet.

> I need to add a battery so it will stay on and save the count when I unplug it or my house looses power.

*/

/* Back to Home */

/home/stephen/gps_activity_logger.md Ln 1, Col 1