Oct 23, 2012 · My i2c 1602 blue lcd display has a 2-pin jumper which says BLK and VCC. Removing the jumper enabled the code to take control of the back-light. (otherwise the …

Jul 4, 2019 · Hi, can you please help me with my problem? I have an I2C LCD display connected to a CH341 (UNO board) and i can't display any text on it. This is the code i use: // simple …

Oct 4, 2024 · Hello, a question about LCD 2004 (or 1602) with I2C interface: how to turn on / off backlight (not with jumper) and trim by software (not with hardware trim)? Also how to turn on / …

Feb 26, 2023 · Hello, I have my Arduino project with an I2C 20x4 LCD display connected, and i want make multiple "pages" on it, and change page with push buttons. I fear this is a simple …

Sep 27, 2024 · I need help on adding a LCD I2C Display to my project and display only the Time. So here is the coding without adding a LCD I2C code yet. Components that i'm using:- …

Jan 13, 2020 · Hello, I connected an I2C LCD 16x02 to my UNO, but it does not work. In particular, when I connect the LCD with UNO, the lights up, but the words I print never appear …

Nov 1, 2023 · With I2C displays, I agree that an I2C multiplexer is probably the best solution. The Arduino code can be written as though only 1 display is connected, but then when the display …

Jan 8, 2020 · Hi, i've attached a 1602 I2C LCD display to an Uno, ran the I2CScanner program and found that the address is 0x3F. I then run this code : // I2C LCD Hello World #include …

Jul 3, 2023 · Hello everyone. I am currently facing an issue with the LCD screen. When I upload the code, I notice strange characters appearing on the screen. I am in need of assistance. …

Aug 1, 2017 · I've tried a 4-bit setup with this display, but had no luck in getting it working directly from the ESP32 without the I2C backpack, so only with jumperwires to a breadboard. My …