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--- arduino:displays_for_classic_arduinos:parallel_character_lcd_displays_and_classic_arduinos [2018/01/31 04:50] – mithat
+++ arduino:displays_for_classic_arduinos:parallel_character_lcd_displays_and_classic_arduinos [2018/02/01 19:38] – mithat
@@ Line 13: / Line 13: @@
 Arduino has a [[https://www.arduino.cc/en/Reference/LiquidCrystal | LiquidCrystal]] library that supports character LCDs using the Hitachi HD44780 parallel controller and equivalents. In addition, there's Greg Tan's [[https://github.com/gregington/BigCrystal | BigCrystal]] library, which builds on top of the LiquidCrystal library and cleverly adds support for double-height characters.
-I decided to get an idea of what the processing time and memory overhead using BigCrystal with a 20x4 display was. I used a 5V 16 Mhz Nano, and the display is probably an STN unit. The frame update time is around 14 msec and varies with the number of big characters being drawn. Memory use is 15% of program storage and 6% of dynamic memory. Because these numbers are so low, I didn't bother doing a test of the LiquidCrystal library on its own.
+I decided to get an idea of what the processing time and memory overhead using BigCrystal with a 20x4 display was. I used a 5V 16 Mhz Nano, and the display is probably an STN unit. The frame update time is around 14 msec and varies with the number of big characters being drawn. Memory use is 15% of program storage and 4% of dynamic memory. Because these numbers are so low, I didn't bother doing a test of the LiquidCrystal library on its own.
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