Article
Universal LCD Module
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Interfacing an LCD to a microcontroller system is daily bread and butter for the average electronics engineer. There are innumerable variants and many circuit suggestions for interfacing the six to seven LCD signals to a microcontroller system. In an effort to prevent continual reinvention of the wheel the author of this design used this simple formula:
(LCD module + Atmel controller) + (a touch of software) = (universal display module)
to design this versatile display unit and PCB.
(LCD module + Atmel controller) + (a touch of software) = (universal display module)
to design this versatile display unit and PCB.
Materials
Gerber file
CAM/CAD data for the PCB referred to in this article is available as a Gerber file. Elektor GREEN and GOLD members can exclusively download these files for free as part of their membership. Gerber files allow a PCB to be produced on an appropriate device available locally, or through an online PCB manufacturing service.
Elektor recommends the Elektor PCB Service service from its business partner Eurocircuits or AISLER as the best services for its own prototypes and volume production.
The use of our Gerber files is provided under a modified Creative Commons license. Creative Commons offers authors, scientists, educators and other creatives the freedom to handle their copyright in a more free way without losing their ownership.
PCB
Component list
Resistors
R1 = see text
Capacitors
C1,C5 = 100nF
C2, C3 = 27pF
C4 = 10µF 16V radial
Semiconductors
D1-D4 = 1N4148
T1 = BS170
IC1 = AT90S2313, order code 050259-41
Miscellaneous
X1 = 11.0592MHz quartz crystal
S1-S16 = pushbutton type D6
LCD module, 2x16 characters
PCBs, ref. 050259-1
R1 = see text
Capacitors
C1,C5 = 100nF
C2, C3 = 27pF
C4 = 10µF 16V radial
Semiconductors
D1-D4 = 1N4148
T1 = BS170
IC1 = AT90S2313, order code 050259-41
Miscellaneous
X1 = 11.0592MHz quartz crystal
S1-S16 = pushbutton type D6
LCD module, 2x16 characters
PCBs, ref. 050259-1
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