I'm making an auto gardener, which is my first project. Before I added the header file of LCD I2C, my buttons were all connected and working. It stopped working when I put my first LCD.print() in the void loop() including interaction with the float variable I wanted to print out in the LCD, which wo…

Do not use magic numbers in your sketches. Example do not code like this: pinValue = digitalRead(2); Instead, code your lines like this: const byte incrementSwitch = 2; . . . pinValue = digitalRead(incrementSwitch); Always add good comments to you lines of code. Suggest you install and us…

Lots of volunteers here offer their skills and time to aid new users with their projects.

By the way, I’m running a simulation in TinkerCAD

Hi, @joemamaandarduino Welcome to the forum. [image] How to get the best out of this forum IDE 1.x See also FAQ - Arduino Forum for general rules on forum behavior and etiquette. Hello, Welcome to the Arduino Forum. This guide explains how to get the best …

#include <LiquidCrystal_I2C.h> int lastButtonState = HIGH; int lastButtonStateLess = HIGH; int lastButtonStateTarget = HIGH; int buttonState = HIGH; int buttonStateLess = HIGH; int buttonStateTarget = HIGH; int lastDebounceTime = 0; int lastDebounceTimeLess = 0; int lastDebounceTimeTarget = 0; int …

See post #7. Where did you determine the LCD has an address of 0x20 ?

I guessed that the default address would be either 0x20 or 0x27. Both of them work.

I implemented the magic number variable thing, and I guess the series resistor looks like this..? [image]

Please describe what is not working.

My Buttons just start going haywire when theres a lcd i2c on it

Other Hardware Displays

TomGeorge August 29, 2023, 3:25pm 4

Hi, @joemamaandarduino
Welcome to the forum.

Can you please post your code?
Can you please post a circuit diagram?

Have you actually built your project in the real world?

Thanks.. Tom..

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My Buttons just start going haywire when theres a lcd i2c on it

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