However, if you want a fixed contrast level then you can replace the potentiometer component with a resistor-diode setup as shown below. This gives a solid DC level (0.65/0.7 V) at the input of the Vo ...

[Kaushlesh Chandel] prototyped a few projects on his Arduino that use an HD44780 Character LCD. Wanting to keep these projects in one piece, but not sacrifice his Arduino board, so he etched his ow… ...

For OLED-Like Contrast, Simply Stack an LCD on Top of Another LCD Matt Perks borrows a clever trick from high-end screens used for color grading in their latest custom build.

A popular combination in embedded designs is the Microchip Technology PIC µC mated to one of the many available LCD modules. These combinations provide a low-cost, simple way to add intelligence to ...