OVERVIEW
The LCD Dev board is a general purpose prototyping aide
with the most common and useful elements in
microcontroller or electronics work. This board contains
LEDs, Buttons, Switches, Potentiometers, an active buzzer
and an I2C interfaced alphanumeric LCD in a compact
form factor.
This board is meant to be used with a microcontroller
board or logic circuit, with or without a breadboard. The
board serves as input/output board to quickly test,
simulate, troubleshoot or demonstrate a project without
extensive wiring as what happens when doing the same
in a breadboard alone.
PIN FUNCTIONS
- BOARD FEATURES
- ⚫ 8x LEDS
- ⚫ 8x Switches
- ⚫ 8x Buttons
- ⚫ 4x Potentiometer
- ⚫ 1x Buzzer
- ⚫ 1x I2C module
⚫ 1x 16×2 LCD Display - ⚫ 38 pin main header, extra I2C header, 8-pin power
- headers
- ⚫ Top facing LCD contrast adjust potentiometer
CIRCUITS
Code
CODE:
int led7 = 7;
int led8 = 8;
int led9 = 9;
int led10 = 10;
int led11 = 11;
int led12 = 12;
int led13 = 13;
int led6 = 6;
void setup() {
pinMode(led7, OUTPUT);
pinMode(led8, OUTPUT);
pinMode(led9, OUTPUT);
pinMode(led10, OUTPUT);
pinMode(led11, OUTPUT);
pinMode(led12, OUTPUT);
pinMode(led13, OUTPUT);
pinMode(led6, OUTPUT);
}
void loop() {
digitalWrite(led7, HIGH);
delay(100);
digitalWrite(led7, LOW);
delay(100);
digitalWrite(led8, HIGH);
delay(100);
digitalWrite(led8, LOW);
delay(100);
digitalWrite(led9, HIGH);
delay(100);
digitalWrite(led9, LOW);
delay(100);
digitalWrite(led10, HIGH);
delay(100);
digitalWrite(led10, LOW);
delay(100);
digitalWrite(led11, HIGH);
delay(100);
digitalWrite(led11, LOW);
delay(100);
digitalWrite(led12, HIGH);
delay(100);
digitalWrite(led12, LOW);
delay(100);
digitalWrite(led13, HIGH);
delay(100);
digitalWrite(led13, LOW);
delay(100);
digitalWrite(led6, HIGH);
delay(100);
digitalWrite(led6, LOW);
delay(100);
}
CODE
int ledPin7 = 7;
int ledPin8 = 8;
int ledPin9 = 9;
int ledPin10 = 10;
int ledPin11 = 11;
int ledPin12 = 12;
int ledPin13 = 13;
int button0 = 0;
int button1 = 1;
int button2 = 2;
int button3 = 3;
int button4 = 4;
int button5 = 5;
int button6 = 6;
byte leds = 0;
void setup()
{
pinMode(ledPin7, OUTPUT);
pinMode(ledPin8, OUTPUT);
pinMode(ledPin9, OUTPUT);
pinMode(ledPin10, OUTPUT);
pinMode(ledPin11, OUTPUT);
pinMode(ledPin12, OUTPUT);
pinMode(ledPin13, OUTPUT);
pinMode(button0, INPUT_PULLUP);
pinMode(button1, INPUT_PULLUP);
pinMode(button2, INPUT_PULLUP);
pinMode(button3, INPUT_PULLUP);
pinMode(button4, INPUT_PULLUP);
pinMode(button5, INPUT_PULLUP);
pinMode(button6, INPUT_PULLUP);
}
void loop()
{
if (digitalRead(button0) == LOW){digitalWrite(ledPin7, HIGH);}
else{digitalWrite(ledPin7, LOW);}
if (digitalRead(button1) == LOW){digitalWrite(ledPin8, HIGH);}
else{digitalWrite(ledPin8, LOW);}
if (digitalRead(button2) == LOW){digitalWrite(ledPin9, HIGH);}
else{digitalWrite(ledPin9, LOW);}
if (digitalRead(button3) == LOW){digitalWrite(ledPin10, HIGH);}
else{digitalWrite(ledPin10, LOW);}
if (digitalRead(button4) == LOW){digitalWrite(ledPin11, HIGH);}
else{digitalWrite(ledPin11, LOW);}
if (digitalRead(button5) == LOW){digitalWrite(ledPin12, HIGH);}
else{digitalWrite(ledPin12, LOW);}
if (digitalRead(button6) == LOW){digitalWrite(ledPin13, HIGH);}
else{digitalWrite(ledPin13, LOW);}
}
CODE:
int led0 = 0;
int led1 = 1;
int led2 = 2;
int led3 = 3;
int led4 = 4;
int led5 = 5;
int led6 = 6;
int sw0 = 7;
int sw1 = 8;
int sw2 = 9;
int sw3 = 10;
int sw4 = 11;
int sw5 = 12;
int sw6 = 13;
void setup()
{
pinMode(led0, OUTPUT);
pinMode(led1, OUTPUT);
pinMode(led2, OUTPUT);
pinMode(led3, OUTPUT);
pinMode(led4, OUTPUT);
pinMode(led5, OUTPUT);
pinMode(led6, OUTPUT);
pinMode(sw0, INPUT_PULLUP);
pinMode(sw1, INPUT_PULLUP);
pinMode(sw2, INPUT_PULLUP);
www.layadcircuits.com
LC Dev Board
User Guide
pinMode(sw3, INPUT_PULLUP);
pinMode(sw4, INPUT_PULLUP);
pinMode(sw5, INPUT_PULLUP);
pinMode(sw6, INPUT_PULLUP);
}
void loop()
{
if (digitalRead(sw0) ==
LOW){digitalWrite(led0, HIGH);}
else{digitalWrite(led0, LOW);}
if (digitalRead(sw1) ==
LOW){digitalWrite(led1, HIGH);}
else{digitalWrite(led1, LOW);}
if (digitalRead(sw2) ==
LOW){digitalWrite(led2, HIGH);}
else{digitalWrite(led2, LOW);}
if (digitalRead(sw3) ==
LOW){digitalWrite(led3, HIGH);}
else{digitalWrite(led3, LOW);}
if (digitalRead(sw4) ==
LOW){digitalWrite(led4, HIGH);}
else{digitalWrite(led4, LOW);}
if (digitalRead(sw5) ==
LOW){digitalWrite(led5, HIGH);}
else{digitalWrite(led5, LOW);}
if (digitalRead(sw6) ==
LOW){digitalWrite(led6, HIGH);}
else{digitalWrite(led6, LOW);}
}
Example – show raw values read from potentiometer via
ADC pins
CODE:
int value0;
int value1;
int value2;
int value3;
void setup() {
Serial.begin(9600);
}
void loop() {
value0 = analogRead(A0); //READS P0
value1 = analogRead(A1); //READS P1
value2 = analogRead(A2); //READS P2
value3 = analogRead(A3); //READS P3
Serial.println(value0); //READS P0
Serial.println(value1); //READS P1
Serial.println(value2); //READS P2
Serial.println(value3); //READS P3
delay(100);}Example – LCD
CODE:
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x3F,16,2); // change 0x3F to 0x27 if you have another module
void setup()
{
lcd.init();
lcd.backlight();
lcd.setCursor(0,0);
lcd.print("LC DEV BOARD");
lcd.setCursor(0,1);
lcd.print("LCD EXAMPLE ");
}
void loop()
{}Example – display raw values of raw potentiometer readings in the LCD
CODE:
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x3F, 16, 2);
int value0;
void setup() {
lcd.init();
lcd.backlight();
}
void loop() {
value0 = analogRead(A0);
lcd.clear();
lcd.setCursor(0,1);
lcd.print(value0);
lcd.setCursor(0,0);
lcd.print("P0 ADC READING" );
delay(100);
}