LCD unit driven by a computer parallel port
I'm not using this module anymore, there are much easier ways to connect an LCD these days.
Very simple LCD unit with almost no external components, driven directly by a computer printer port.
This very simple module is driven purely by a computer parallel (printer) port. Almost no external components are needed; a few capacitors for voltage stabilization, a trimmer for the contrast adjustment and a resistor for the LED back-light. All communication is done directly over the parallel port data lines. The LCD is powered by an external 5 V power supply. It can't be placed too far from the computer though since the recommended max length of a parallel cable is 15 ft.
I used LCD Smartie to drive and control the display. Things like MP3 song information, system temperatures etc. are available right out of the box. And they have a number of plugins available. If you want to show some custom data you can write it to text files and have LCD Smartie read and display the content of those files. It's even able to cycle though a list of screens to show multiple pages of information, very cool.
|1 ×||Capacitor, aluminium electrolytic, 10 µF, 25V|
|1 ×||Capacitor, aluminium electrolytic, 47 µF, 25V|
|1 ×||Capacitor, ceramic, 1 nF, 100V|
|1 ×||Capacitor, metallized polyester foil, 10 nF, (0.01 µF)|
|1 ×||Centronics, chassi, 36-pin|
|1 ×||Enclosure, plastic (Alu. lid), 110x70x49mm|
|1 ×||Fuse 5x20 mm, 200 mA, fast-acting|
|1 ×||Fuse holder, open, PCB, 5x20mm|
|1 ×||Fuse holder, open, PCB, Protective cover|
|1 ×||LCD display, dot matrix, 16x2, LED green|
|32 cm2||PCB, stripboard, 100x160mm, 160cm2|
|1 ×||Power jack, panel, 2.1mm, plastic housing|
|1 ×||Resistor, carbon film, 0.25W, 120 Ω, 5%|
|9 ×||Spacer, round unthreaded, 3mm, Ø6mm, Delrin|
|16 ×||Straight pin header, female, Single row, 2.54mm|
|16 ×||Straight pin header, male, Single row, 2.54mm|
|1 ×||Trimmer, carbon, 10 kΩ, horizontal|