[conville] has been pushing standard HD44780 character displays to the limit. Embedded above is an example spectrum analyzer and text scrolling demo. Below you’ll find a scope demo. Both of these are created using a PIC 16F688 that dynamically rewrites a custom character set to create the animation. You can find the source code on mikrocontroller.net.… Read the rest
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