I'm trying to communicate via I2C on the Raspi, programming it with the Arduino Create Web Editor. I have enabled I2C on the pi, made sure /dev/i2c-1 exists. The pi can see the device (just a simple LCD for now) via the command line on the pi itself.
I'm getting the error "no I2C device available for Wire10". I'm wired to SDA1/SCL1 (pins 3 and 5). I have previously tested the display and the code on an UNO and it works fine.
Please help! I saw someone had this issue before and simply said "I fixed it" but didn't provide an explanation.
Thanks! (Code below for reference)
/* I2C LCD with Arduino example code. More info: https://www.makerguides.com */
// Include the libraries:
// LiquidCrystal_I2C.h: https://github.com/johnrickman/LiquidCrystal_I2C
#include <Wire.h> // Library for I2C communication
#include <LiquidCrystal_I2C.h> // Library for LCD
// Wiring: SDA pin is connected to A4 and SCL pin to A5.
// Connect to LCD via I2C, default address 0x27 (A0-A2 not jumpered)
LiquidCrystal_I2C lcd = LiquidCrystal_I2C(0x27, 20, 4); // Change to (0x27,16,2) for 16x2 LCD.
void setup() {
// Initiate the LCD:
lcd.init();
lcd.backlight();
}
void loop() {
// Print 'Hello World!' on the first line of the LCD:
lcd.setCursor(0, 0); // Set the cursor on the first column and first row.
lcd.print("Hello Worlds!"); // Print the string "Hello World!"
lcd.setCursor(2, 1); //Set the cursor on the third column and the second row (counting starts at 0!).
lcd.print("LCD tutorial");
}
