LCD display weird characters - Arduino Stack Exchange
May 13, 2018 · The first thing to try is replacing lcd.begin(16, 2) with lcd.begin(20, 4). The image of your LCD looks like a 20 char by 4 line display. Based on your comments, it seems that the …
Why does my LCD display random characters? - Arduino Stack …
Sep 18, 2015 · The LiquidCrystal library includes known-good example code, that's part of what Arduino is for. Go ahead and use that as a diagnostic to check the LCD works, before …
Simple LCD countdown timer - Arduino Stack Exchange
May 1, 2021 · I tried to modify the basic "hello-world" sketch for the LCD that is a part of the examples section in the IDE. I intended to make a countdown timer using the LCD. The …
LCD lights up but shows no text - Arduino Stack Exchange
0 I've connected an LCD display to an Arduino Uno following the instructions from the Adafruit LCD lesson. I've used the code sample described in the Adafruit lesson. What happens after I …
Print string and integer LCD - Arduino Stack Exchange
In order to print something that contains both strings and integers, the most straightforward way is to convert each piece to an Arduino string and then concatenate them, using the + operator …
arduino uno - Why is my LCD 16*2 is not displaying any characters ...
Aug 5, 2014 · Recently I have linked up a typical 16*2 LCD (Liquid Crystal Display) display to my Arduino Uno and have linked all the pins up. Here is my connection: (LCD pin first)
Infamous white squares for LCD display - Arduino Stack Exchange
Nov 15, 2020 · Infamous white squares for LCD display Ask Question Asked 4 years, 11 months ago Modified 4 years, 2 months ago
How can I get my LCD display to display Chinese and Japanese …
Jul 21, 2020 · Your LCD uses a single byte for the character to display, so there are < 256 characters possible. 8 of them are userdefineable, the others are predefined in the LCD-ROM. …
I2C LCD displaying weird characters - Arduino Stack Exchange
Jan 2, 2016 · I have connected an LCD with an I2C backpack to my Arduino Uno but it prints the wrong characters. The weird thing is that it worked fine for a while and when I updated the …
How to show the º character in a LCD? - Arduino Stack Exchange
Nov 20, 2017 · I have a 16x2 LCD and I want to show a temperature: 23 ºC. But the º symbol is not properly shown. It shows a strange character instead of the º symbol .