Hackaday3 年
Cool Binary Clock Uses Old-School LEDs And A Fancy Graphic PCB
The clock uses only digital logic ICs to tell the ... and resetting the counters as appropriate. The PCB that houses the project is printed on directly by a flatbed inkjet printer, which [Ian ...
Hackaday3 年
Improved Thermochromic Clock Uses PCB Heaters For Better Contrast
Both PCB designs and the Arduino firmware can be ... as these heaters sure are power hungry! Got a perfectly good clock, but desperately need a thermochromic temperature/humidity display?