![]() I hope you enjoyed this article, similar to Arduino sketches you can find at the link below. If(digitalRead(upButtonPin) = LOW & button_flag = 0)Įlse if(digitalRead(downButtonPin) = LOW & button_flag = 0) MenuFunctions(currentMenuItem + 1, 0, 1) If(digitalRead(leftButtonPin) = LOW & button_flag = 0) MenuFunctions(currentMenuItem + 1, 1, 0) If(digitalRead(rightButtonPin) = LOW & button_flag = 0) Int numberOfMenuItems = MenuItemsSize(MenuItems) - 1 The first example was for a 4 x 20 character LCD display. This tutorial takes LCD 16x2 (16 columns and 2 rows) as an example. LCDs are very popular and widely used in electronics projects for displaying information. The other 4 x 20 character LCD display is connected to the I2C bus via PCF8574 IC, address of “0x27”. Arduino - LCD I2C In this Arduino LCD I2C tutorial, we will learn how to connect an LCD I2C (Liquid Crystal Display) to the Arduino board. This lcd module has the PCF8574A expander IC with an I2C address of “0x3F”. I have written a few examples in the arduino sketch, you can delete or rewrite them, I just intended them as guidelines for easier understanding.įor some reason, the lcd.clear () function did not work on one of my 4 x 20 character LCDs, using the lcd.noBacklight () function solved the problem. The first example is distance measurement using ultrasonic sensor. Overview For this tutorial I composed three examples. ![]() You can watch the following video or read the written tutorial below. It is very easy to use. In the MenuItems String array, enter the names of the menu items, and then type the function for the menu item in an if () statement in the menuFunctions () function. the condition for if () must be the serial number of the menu item. That’s it, you can use the dynamic arduino menu. In this Arduino touch screen tutorial we will learn how to use TFT LCD Touch Screen with Arduino. Proper external power is highly recommended, the USB port power is low to power the LCD display and the Arduino UNO. You can also use other boards, such as: Arduino Nano, Mini, Leonardo, Mega, or ESP 8266, ESP32, whichever suits you. It can be a good solution for both beginners and advanced users if you need to create an LCD menu quickly. All this at the beginning of the arduino sketch, you don’t have to search the code for where to paste the code snippets. Just enter the menu items, write the corresponding function and you’re done. Once you find the library click on it, select the latest version and hit install. ![]() In the top right text box, type in LiquidCrystal then look for the LiquidCrystal Library. If for some reason it isn't, go to the Sketch menu > Include Library > Library Manager. You can add as many menu items as you want. This library should be already downloaded to the Arduino IDE. The following Dynamic Arduino LCD menu is easy to use, easy to edit, expand.
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