| ??? 08/06/01 11:14 Read: times |
#13857 - RE: Another way to control contrast: |
Good suggestion, but as the LED in the backlight doesn't mind a square-wave it is not nescessary to filter the voltage in any kind. Just choose a PWM-rate high enough to prevent the eye from seeing the blinking and regulate the contrast by duty-cycle.
|
| Topic | Author | Date |
| LCD 44780, brightness and contrast: | 01/01/70 00:00 | |
| RE: LCD 44780, brightness and contrast: | 01/01/70 00:00 | |
| RE: LCD 44780, brightness and contrast: | 01/01/70 00:00 | |
| RE: Another way to control contrast: | 01/01/70 00:00 | |
| RE: Another way to control contrast: | 01/01/70 00:00 | |
| RE: Another way to control contrast: | 01/01/70 00:00 | |
RE: Another way to control contrast: | 01/01/70 00:00 |