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electronic:lcd:a9h038 [2019/12/07 09:32] – tonyelectronic:lcd:a9h038 [2026/09/26 08:00] (current) – tony
Line 9: Line 9:
 ^Columns|20| ^Columns|20|
 ^Rows|2| ^Rows|2|
-^Char matrix|| +^Char matrix|5x8| 
-^Driver IC|(CoG)|+^Driver IC|Hitachi HD44780 compatible (CoG)|
 ^Backlight|-| ^Backlight|-|
-^Arduino driver||+^Arduino driver|LiquidCrystal.h|
 ^Connector|PCB flex cable| ^Connector|PCB flex cable|
 ^Num Pins|14| ^Num Pins|14|
Line 19: Line 19:
 ^  Connector pin-out  ^^^  Arduino test rig  | ^  Connector pin-out  ^^^  Arduino test rig  |
 ^Pin#^Label^Description^Pin| ^Pin#^Label^Description^Pin|
-^1|V0|Contrast| |+^1|V0|Contrast|Contrast adjustment ((connect to potentiometer between Vdd and GND))|
 ^2|Vdd|Power supply for logic|+5V| ^2|Vdd|Power supply for logic|+5V|
 ^3|Vss|Ground|GND| ^3|Vss|Ground|GND|
-^4|DB7|Data bus line| | +^4|DB7|Data bus line|d7| 
-^5|DB6|Data bus line| | +^5|DB6|Data bus line|d6| 
-^6|DB5|Data bus line| | +^6|DB5|Data bus line|d5| 
-^7|DB4|Data bus line| |+^7|DB4|Data bus line|d4|
 ^8|DB3|Data bus line| | ^8|DB3|Data bus line| |
 ^9|DB2|Data bus line| | ^9|DB2|Data bus line| |
 ^10|DB1|Data bus line| | ^10|DB1|Data bus line| |
 ^11|DB0|Data bus line| | ^11|DB0|Data bus line| |
-^12|E|Enable signal| |+^12|E|Enable signal|d9|
 ^13|R/W|Read/Write select signal|GND| ^13|R/W|Read/Write select signal|GND|
-^14|RS|Data/Instruction select signal| |+^14|RS|Data/Instruction select signal|d8|
  
 \\ \\
-\\+---- 
 +===== Schematics ===== 
 +^a9H038 schematic :^ 
 +{{:electronic:lcd:uf595_lcd_module.png?800|a9H038 circuit}}
  
 +\\
 ---- ----
-===== Examples : =====+===== Examples =====
  
 {{:electronic:lcd:pb128033a.jpg?800|a9H038 front}} {{:electronic:lcd:pb128033a.jpg?800|a9H038 front}}
 {{:electronic:lcd:pb128037a.jpg?800|a9H038 back}} {{:electronic:lcd:pb128037a.jpg?800|a9H038 back}}
 {{:electronic:lcd:pb128039a.jpg?800|a9H038 overview with board}} {{:electronic:lcd:pb128039a.jpg?800|a9H038 overview with board}}
-{{:electronic:lcd:pb128038b.jpg?300|a9H038 connector}}\\+{{:electronic:lcd:pb128038b.jpg?300|a9H038 connector}} 
 + 
 +{{:electronic:lcd:pb128035a.jpg?300|a9H038 chip}}
  
-{{:electronic:lcd:pb128035a.jpg?300|a9H038 chip}}\\ 
 {{:electronic:lcd:pc078538a.jpg?300|a9H038 character set}}\\ {{:electronic:lcd:pc078538a.jpg?300|a9H038 character set}}\\
 {{:electronic:lcd:pc078539a.jpg?300|a9H038 character set}}\\ {{:electronic:lcd:pc078539a.jpg?300|a9H038 character set}}\\
Line 59: Line 64:
  
 {{:electronic:lcd:pc078547b.jpg?200|a9H038 pixel layout}} {{:electronic:lcd:pc078547b.jpg?200|a9H038 pixel layout}}
-{{:electronic:lcd:uf595_lcd_module.png?800|a9H038 circuit}}+
  

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electronic/lcd/a9h038.1575711170.txt.gz · Last modified: 2019/12/07 09:32 by tony
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