Normally driving an LCD requires seven connections to pins ... to group the lines together and a variable resistor to control the contrast. A zip file with the requisite code to make this work ...

[Tom Fleet] spent the dreary weekend inside learning how to drive this T6963C based graphic LCD controller ... divider for the screen contrast. The data and control pins eat up most of the ...

Generating a stable, dual-voltage, LCD-contrast supply can be difficult, particularly if the two voltage amplitudes must track each other with respect to a given reference level. In Figure 1 ...

To link a standard 16×2 LCD directly with the microcontroller, for instance Arduino, you would need atleast 6 I/O pins to talk to the LCD. However, if you use an LCD module with I2C interface, you ...

Here is a simple general-purpose security alarm circuit built on the Arduino platform ... is added to limit the operating current of the LCD backlight unit, and P1 (10K) is the display contrast ...