Taisomas LCD 8x2 0802A

= 0802-A LCD =

[[Vaizdas:0802-lcd.jpg|400px]]
[[Vaizdas:Lcd-works.jpg|400px]]


= Pinai =

{| class="wikitable"
|+ 0802-A LCD 14pin pinout
|-
! Pin nr !! Tipas !! Apibūdinimas !! Jungimas
|-
| 1 || Vss || Power supply (GND) || GND
|-
| 2 || Vdd || Power supply (+) || 5V
|-
| 3 || Vo || Contrast adjust || GND su 2k-10k resistoriumi
|-
| 4 || RS || Register select signal || Skaitmeninis pin 
|-
| 5 || R/W || Data read / write || GND
|-
| 6 || E || Enable signal || Skaitmeninis pin
|-
| 7 || DB0 || Data bus line || Neprijungtas
|-
| 8 || DB1 || Data bus line || Neprijungtas
|-
| 9 || DB2 || Data bus line || Neprijungtas
|-
| 10 || DB3 || Data bus line || Neprijungtas
|-
| 11 || DB4 || Data bus line || Skaitmeninis pin 
|-
| 12 || DB5 || Data bus line || Skaitmeninis pin 
|-
| 13 || DB6 || Data bus line || Skaitmeninis pin 
|-
| 14 || DB7 || Data bus line || Skaitmeninis pin 
|}

= Prijungimas prie Arduino UNO =

{| class="wikitable"
|+ 0802-A LCD 14pin pinout Arduino UNO
|-
! Pin nr !! Tipas !! Apibūdinimas !! Jungimas
|-
| 1 || Vss || Power supply (GND) || GND
|-
| 2 || Vdd || Power supply (+) || 5V
|-
| 3 || Vo || Contrast adjust || GND su 2k-10k resistoriumi
|-
| 4 || RS || Register select signal || Arduino Pin 12
|-
| 5 || R/W || Data read / write || GND
|-
| 6 || E || Enable signal || Arduino Pin 11
|-
| 7 || DB0 || Data bus line || Neprijungtas
|-
| 8 || DB1 || Data bus line || Neprijungtas
|-
| 9 || DB2 || Data bus line || Neprijungtas
|-
| 10 || DB3 || Data bus line || Neprijungtas
|-
| 11 || DB4 || Data bus line || Arduino Pin 5
|-
| 12 || DB5 || Data bus line || Arduino Pin 4
|-
| 13 || DB6 || Data bus line || Arduino Pin 3
|-
| 14 || DB7 || Data bus line || Arduino Pin 2
|}

== Kodas ==

<syntaxhighlight lang="cpp">
#include <LiquidCrystal.h>
const int rs = 12, en = 11, d4 = 5, d5 = 4, d6 = 3, d7 = 2;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7);

 
void setup() {
  // set up the LCD's number of columns and rows:
  lcd.begin(8, 2);
  delay(3000);
  // Print a message to the LCD
  lcd.print("Hello!");
}
 
void loop() {
  // set the cursor to column 0, line 1
  lcd.setCursor(0, 1);
  // print the number of seconds since reset:
  lcd.print(millis() / 1000);
}
</syntaxhighlight>

[[Category:ESP8266]]
[[Category:ESP32]]
[[Category:IoT]]
[[Category:Hardware]]