I2C LCD 2×16
$4.00
Conexionado de hardware
La conexión del LCD se queda de la sigueinte forma:
- El pin GND del display al pin GND del Arduino.
- El pin VCC del display al pin 5V del Arduino.
- El pin SDA del display al pin analógico 4 del Arduino.
- El pin SDL del display al pin analógico 5 del Arduino.
USE este codigo para encontrar la direccion del I2C
void loop()
{
byte error, address;
int nDevices;
Serial.println(“Scanning…”);
nDevices = 0;
for(address = 1; address < 127; address++ )
{
// The i2c_scanner uses the return value of
// the Write.endTransmisstion to see if
// a device did acknowledge to the address.
Wire.beginTransmission(address);
error = Wire.endTransmission();
if (error == 0)
{
Serial.print(“I2C device found at address 0x”);
if (address<16)
Serial.print(“0”);
Serial.print(address,HEX);
Serial.println(” !”);
nDevices++;
}
else if (error==4)
{
Serial.print(“Unknow error at address 0x”);
if (address<16)
Serial.print(“0”);
Serial.println(address,HEX);
}
}
if (nDevices == 0)
Serial.println(“No I2C devices found\n”);
else
Serial.println(“done\n”);
delay(5000); // wait 5 seconds for next scan
}
y remplezalo en:
LiquidCrystal_I2C lcd(0x27,16,2); // donde dice 0x
10 in stock
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