Hi,
I have been trying to run the sample programs on the I2C_LCD break out board.
All the samples fail to execute on the LCD.
I have tested my voltage, 5v.
I have done a factory reset on the LCD and still am unable to execute any of the sample code.
Arduino Uno Wifi
Connections :
VCC
GND
SCL
SDA
I did run an I2C bus scanner and when it gets to 0x51, I get an error 4 returned. All other I2C devices do not return an error. I attached the code.
#include <Wire.h>
void setup()
{
Wire.begin();
Serial.begin(9600);
while (!Serial); // Leonardo: wait for serial monitor
Serial.println("\nI2C Scanner");
}
void loop()
{
byte error, address;
int nDevices;
Serial.println("Scanning...");
nDevices = 0;
for(address = 1; address < 127; address++ ) {
Wire.beginTransmission(address);
error = Wire.endTransmission();
Serial.print("address: ");
Serial.print(address);
Serial.println(" !");
Serial.print("error: ");
Serial.print(error);
Serial.println(" !");
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
}