is it possible to use glcd in 4 bit mode ????

i m using glcd in uno but it uses my whole pins in un ,is there any way to use glcd in 4 bit as i am using in 16x2 lcd ?????

No. The KS0108 and T6963C GLCD controllers both require the whole 8-bit bus.

However the ST7920 controller can use a 4-bit bus. And the Ebay modules have the same pinout as most 16x2 or 20x4. Not only can it use 4-bit bus, it can use SPI which is even better.


ok thakyou for helping i will try