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 …
Infamous white squares for LCD display - Arduino Stack Exchange
Nov 15, 2020 · The description of the pin map does not seem to match your call legend in the lcd constructor on line. It is difficult to tell what you have wired without the right angle on the LCD …
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. …
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 …
Drawing a bar graph in a LCD - Arduino Stack Exchange
1 I'm getting my first steps on Arduino and I'm trying to do an exercise where I have to draw a graph bar in a 16x2 LCD that indicates the values read from a vector of 16 integer elements …
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-Display showing wrong numbers - Arduino Stack Exchange
Jun 28, 2015 · Hy guys, I am having an issue with my new LCD16x2 display. I connected a potentiometer and read the values. The values are properly read and send to Serial. I also …
Change the backlight of 2x16 LCD - Arduino Stack Exchange
Nov 20, 2014 · Today I ordered a 2x16 character LCD with white characters on black background. Now I am wondering if I can change the backlight LED, which I guess is white for the …
Connecting an LCD when Pins A4 and A5 are Occupied - arduino …
Aug 12, 2021 · So you can connect both devices to the same pins, as the communication interface there already supports that. The pins A4 and A5 are the I2C pins of the Arduino, so …
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 …