Flexible circuit valentine

February 14, 2009 By 10 Comments

valentine

[xander] built this LED valentine for his loved one. It’s interesting because he used Pyralux, a flexible circuit board material from DuPont. He describes the consistency as “tough plastic tissue-paper”, but had no trouble using standard toner transfer etching. It has an ATtiny45 microcontroller that pulses the 16 LEDs at an approximation of his heart beat. To avoid soldering … Read the rest

Filed Under: led hacks, misc hacks Tagged With: , , , , , , , , , , ,

3 wire LCD display

June 13, 2008 By 5 Comments


Normally driving an LCD requires seven connections to pins on the display, but by using a shift register, [Phillip Warner] at Arduino Playground was able to drive an LCD using only 3 wires. The method is cheaper than a serial LCD, but you’ll mainly save yourself a lot of effort and time by using it.

[Warner] used a HEF4094 … Read the rest

Filed Under: misc hacks Tagged With: , , , , ,