Happy Valentine’s from Dangerous Prototypes. This touch activated Valentine’s card is one of Ian’s early projects at DIY Life. It’s designed to be home-etched on a single-sided PCB. A PIC16F microcontroller fades the LEDs like a heart beat. It’s activated when someone touches the conductive pad, which allows current through a PNP transistor and wakes […]
Tag Archives: LED card
Christmas LED card morphed into a singing birthday card
Drew had a few of our X-mas LED cards left over from the holidays, so he decided to re-purpose one of them into a singing birthday card. He connected a small speaker to one of the LED pads, and reprogrammed the AVR to output an 880 Hz note. Via the comments.
Christmas LED card built and shared
Drew picked up our old blinking Xmas card project. He got the PCBs just in time to complete the project before Xmas. I finally assembled a couple and am off to give them to my parents and grandparents at Christmas Eve We’re glad our project brought some joy during the festivities. This project is no […]